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AIRVANA INC 10-Q 2008

Documents found in this filing:

  1. 10-Q
  2. Ex-31.1
  3. Ex-31.2
  4. Ex-32.1
  5. Ex-32.2
  6. Graphic
  7. Graphic
e10vq
Table of Contents

 
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
FORM 10-Q
 
     
þ   QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 29, 2008
OR
     
o   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                      to                     
Commission file number: 001-33576
 
Airvana, Inc.
(Exact name of registrant as specified in its charter)
 
     
Delaware   04-3507654
(State or Other Jurisdiction of   (I.R.S. Employer
Incorporation or Organization)   Identification Number)
19 Alpha Road
Chelmsford, Massachusetts 01824
(Address of Principal Executive Offices including Zip Code)
(978) 250-3000
(Registrant’s Telephone Number, Including Area Code)
 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):
             
Large accelerated filer o   Accelerated filer o   Non-accelerated filer þ   Smaller reporting company o
        (Do not check if a smaller reporting company)    
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ
The number of shares of the registrant’s common stock, par value $0.001, outstanding as of July 31, 2008 was 65,116,048.
 
 

 


 

AIRVANA, INC.
QUARTERLY REPORT ON FORM 10-Q
FOR THE QUARTERLY PERIOD ENDED June 29, 2008
Table of Contents
         
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 Ex-31.1 Section 302 Certification of CEO
 Ex-31.2 Section 302 Certification of CFO
 Ex-32.1 Section 906 Certification of CEO
 Ex-32.2 Section 906 Certification of CFO

 


Table of Contents

PART I — Financial Information
Item 1 — Condensed Consolidated Financial Statements (unaudited)
AIRVANA, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(unaudited)
(in thousands, except share and per share amounts)
                 
    December 30,     June 29,  
    2007     2008  
Assets
               
Current assets:
               
Cash and cash equivalents
  $ 43,547     $ 35,312  
Investments
    178,416       189,111  
Accounts receivable
    14,171       7,941  
Deferred product cost, current
    1,050       1,354  
Prepaid taxes
    115        
Deferred tax asset
    1,422       1,705  
Prepaid expenses and other current assets
    3,064       2,281  
 
           
Total current assets
    241,785       237,704  
 
               
Property and equipment
    17,831       18,744  
Less: accumulated depreciation and amortization
    11,434       13,007  
 
           
 
    6,397       5,737  
 
               
Investments, long-term
          3,068  
Deferred tax asset
    1,786       1,777  
Restricted investments
    193       193  
Goodwill and intangible assets, net
    12,165       11,631  
Other assets
    414       395  
 
           
Total assets
  $ 262,740     $ 260,505  
 
           
 
               
Liabilities and stockholders’ equity
               
Current liabilities:
               
Accounts payable
  $ 3,806     $ 1,592  
Accrued expenses and other current liabilities
    11,162       9,147  
Accrued income taxes
    15,016       5,915  
Deferred revenue, current
    79,915       76,374  
 
           
Total current liabilities
    109,899       93,028  
 
               
Deferred revenue, long-term
    63       1,022  
Accrued income taxes
    4,675       4,692  
Deferred tax liabilities
    1,174       1,017  
Other liabilities
    1,754       1,435  
 
           
Total long-term liabilities
    7,666       8,166  
 
               
Commitments (Note 11)
           
Stockholders’ equity:
               
Preferred stock, $0.001 par value: 10,000,000 shares authorized, no shares issued or outstanding at December 30, 2007 and June 29, 2008
           
Common stock, $0.001 par value: 350,000,000 shares authorized, 63,559,983 and 64,837,322 shares issued and outstanding at December 30, 2007 and June 29, 2008, respectively (Note 9)
    64       65  
Additional paid-in capital
    190,409       195,655  
Accumulated deficit
    (45,298 )     (36,409 )
 
           
Total stockholders’ equity
    145,175       159,311  
 
           
 
               
Total liabilities and stockholders’ equity
  $ 262,740     $ 260,505  
 
           
The accompanying notes are an integral part of these condensed consolidated financial statements.

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AIRVANA, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(unaudited)
(in thousands, except per share amounts)
                                 
    Three Months Ended     Six Months Ended  
    July 1,     June 29,     July 1,     June 29,  
    2007     2008     2007     2008  
Revenue:
                               
Product
  $ 141,641     $ 54,784     $ 141,641     $ 60,317  
Service
    14,615       4,235       14,884       6,340  
 
                       
Total revenue
    156,256       59,019       156,525       66,657  
 
                               
Cost of revenue:
                               
Product
    33,918       1,314       33,931       1,434  
Service
    1,852       2,013       3,522       3,806  
 
                       
Total cost of revenue
    35,770       3,327       37,453       5,240  
 
                               
Gross profit
    120,486       55,692       119,072       61,417  
 
                               
Operating expenses:
                               
Research and development
    18,598       18,091       34,581       37,350  
Selling and marketing
    3,182       3,825       5,762       7,403  
General and administrative
    1,721       2,321       3,237       4,394  
In-process research and development
    2,340             2,340        
 
                       
Total operating expenses
    25,841       24,237       45,920       49,147  
 
                       
 
                               
Operating income
    94,645       31,455       73,152       12,270  
 
                               
Interest income, net
    1,879       1,792       4,587       4,377  
 
                               
Income before income tax expense
    96,524       33,247       77,739       16,647  
 
                               
Income tax expense
    10,422       12,684       10,422       7,758  
 
                       
 
                               
Net income
  $ 86,102     $ 20,563     $ 67,317     $ 8,889  
 
                       
 
                               
Net income per common share applicable to common stockholders:
                               
Basic
  $ 1.56     $ 0.32     $ 1.14     $ 0.14  
Diluted
  $ 1.37     $ 0.29     $ 1.04     $ 0.13  
 
                               
Weighted average common shares outstanding:
                               
Basic
    14,017       64,601       13,938       64,248  
Diluted
    21,526       70,763       20,793       70,398  
The accompanying notes are an integral part of these condensed consolidated financial statements.

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AIRVANA, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(unaudited)
(in thousands)
                                 
    Three Months Ended     Six Months Ended  
    July 1,     June 29,     July 1,     June 29,  
    2007     2008     2007     2008  
Operating activities
                               
Net income
  $ 86,102     $ 20,563     $ 67,317     $ 8,889  
Adjustments to reconcile net income to net cash provided by operating activities:
                               
 
                               
Depreciation
    782       814       1,504       1,621  
Amortization of intangible assets
    178       267       178       534  
In-process research and development
    2,340             2,340        
Stock-based compensation
    739       1,179       1,253       2,264  
Deferred tax benefit
    5       12,684       5       7,758  
Tax benefit related to exercise of stock options
          (1,497 )           (1,497 )
Amortization of investments
    (1,338 )     (1,149 )     (2,587 )     (2,410 )
Amortization of leasehold incentive
    (130 )     (131 )     (260 )     (261 )
Non-cash interest income
    (15 )           (103 )      
Changes in operating assets and liabilities:
                               
Accounts receivable
    (13,506 )     3,098       29,304       6,230  
Deferred cost
    33,672       297       33,513       (304 )
Prepaid taxes
    2,451       618       2,451       115  
Prepaid expenses and other current assets
    287       379       271       783  
Accounts payable
    (156 )     (1,647 )     (685 )     (2,214 )
Accrued expenses and other current liabilities
    2,528       1,651       (556 )     (1,911 )
Accrued income taxes
    8,437       (701 )     8,437       (15,776 )
Deferred revenue
    (119,706 )     (32,740 )     (78,500 )     (2,582 )
         
Net cash provided by operating activities
    2,670       3,685       63,882       1,239  
 
                               
Investing activities
                               
Purchases of property and equipment
    (673 )     (455 )     (2,259 )     (1,033 )
Purchase of 3-Way Networks, net of cash acquired
    (10,907 )           (10,907 )      
Purchases of investments
    (56,262 )     (68,803 )     (163,810 )     (175,793 )
Maturities of investments
    66,951       74,504       123,594       147,809  
Proceeds from sale of investments
                      16,631  
Other assets
    (91 )     16       (87 )     19  
         
Net cash (used in) provided by investing activities
    (982 )     5,262       (53,469 )     (12,367 )
 
                               
Financing activities
                               
Payments on long-term debt
    (53 )     (94 )     (53 )     (112 )
Costs associated with proposed initial public offering
    (841 )           (1,709 )      
Tax benefit related to exercise of stock options
          1,497             1,497  
Payments of cash dividend
    (72,707 )     (5 )     (72,707 )     (50 )
Purchase of treasury stock
                (96 )      
Proceeds from exercise of stock options
    266       670       502       1,486  
         
Net cash (used in) provided by financing activities
    (73,335 )     2,068       (74,063 )     2,821  
 
                               
Effect of exchange rate changes on cash and cash equivalents
    56       59       52       72  
         
Net (decrease) increase in cash and cash equivalents
    (71,591 )     11,074       (63,598 )     (8,235 )
Cash and cash equivalents at beginning of period
    94,808       24,238       86,815       43,547  
         
Cash and cash equivalents at end of period
  $ 23,217     $ 35,312     $ 23,217     $ 35,312  
         
 
                               
Supplemental Disclosure of Cash Flow Information
                               
Cash paid for income taxes
  $ 55     $ 78     $ 55     $ 15,578  
 
                       
Supplemental Disclosure of Noncash Activities
                               
Accretion of dividends on redeemable convertible preferred stock
  $ 1,835     $     $ 3,669     $  
 
                       
The accompanying notes are an integral part of these condensed consolidated financial statements.

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AIRVANA, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(unaudited)
(dollars in thousands, except share and per share amounts)
1. Operations
Business Description
     Airvana, Inc. (the “Company”) is a leading provider of network infrastructure products used by wireless operators to provide mobile broadband services. The Company’s software and hardware products are based on Internet Protocol (“IP”) technology and enable wireless networks to deliver broadband-quality multimedia services to mobile phones, laptop computers and other mobile devices. These services include Internet access, e-mail, music downloads, video, IP-TV, gaming, push-to-talk and voice-over-IP. The Company has offices in Chelmsford, Massachusetts; Dallas, Texas; Bangalore, India; Cambridge, United Kingdom; Madrid, Spain; Darmstadt, Germany; Beijing, China; Seoul, Korea; and Tokyo, Japan.
2. Summary of Significant Accounting Policies
Basis of Presentation and Principles of Consolidation
     The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, after elimination of intercompany transactions and balances. These condensed consolidated financial statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States applicable to interim periods, and in the opinion of management, include all normal and recurring adjustments that are necessary to present fairly the results of operations for the reported periods. These financial statements and notes should be read in conjunction with the audited consolidated financial statements and related notes, together with management’s discussion and analysis of financial condition and results of operations, contained in the Company’s Annual Report on Form 10-K for the year ended December 30, 2007, which was filed with the Securities and Exchange Commission (the “SEC”) on March 7, 2008.
Unaudited Interim Financial Statements
     The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements have been condensed or omitted pursuant to such SEC rules and regulations. In the opinion of management, the unaudited condensed consolidated financial statements and notes have been prepared on the same basis as the audited consolidated financial statements and include all adjustments (consisting of normal, recurring adjustments) necessary for the fair presentation of the Company’s financial position at June 29, 2008, results of operations for the three months ended July 1, 2007 and June 29, 2008 and six months ended July 1, 2007 and June 29, 2008, and cash flows for the three months ended July 1, 2007 and June 29, 2008 and six months ended July 1, 2007 and June 29, 2008. The interim results are not necessarily indicative of the results that may be expected for any other interim period or the full year.
Use of Estimates
     The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expense during the reporting period. Actual results could differ from those estimates. Significant estimates and judgments relied upon by management in preparing these financial statements include the timing of revenue recognition, expensing or capitalizing research and development costs for software, the determination of the fair value of stock awards issued, the recoverability of the Company’s deferred tax assets, the amount of the Company’s income tax expenses, valuations and purchase price allocations related to business combinations, expected future cash flows used to evaluate the recoverability of long-lived assets, estimated fair

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values of intangible assets and goodwill, amortization periods, and the classification of deferred product costs and deferred revenues.
     Although the Company regularly assesses these estimates, actual results could differ materially from these estimates. Changes in estimates are recorded in the period in which they become known. The Company bases its estimates and judgments on historical experience and various other factors that it believes to be reasonable under the circumstances. Actual results may differ from management’s estimates if these results differ from historical experience or other assumptions prove not to be substantially accurate, even if such assumptions are reasonable when made.
     The Company is subject to a number of risks similar to those of other companies of similar size in its industry, including, rapid technological changes, competition, limited number of suppliers, customer concentration, integration of acquisitions, management of international activities, protection of proprietary rights, patent and other litigation and dependence on key individuals as well as a variety of other risks, including those described in Part II, Item 1A of this quarterly Report on Form 10-Q.
Fiscal Year
     The Company’s fiscal year ends on the Sunday nearest to December 31. The Company’s fiscal quarters end on the Sunday closest to the last day of the third calendar month of the quarter.
Cash and Cash Equivalents
     Cash equivalents consist of highly liquid instruments with original maturities of three months or less at the date of purchase. Cash equivalents are carried at cost, which approximates their fair market value.
Investments and Restricted Investments
     The Company determines the appropriate categorization of investments in securities at the time of purchase. As of December 30, 2007 and June 29, 2008, the Company’s investments were categorized as held-to-maturity and are presented at their amortized cost, which approximates market value. The Company classifies securities on its balance sheet as short-term or long-term based on the date it reasonably expects the securities to mature or liquidate.
     As of December 30, 2007 and June 29, 2008, the Company has $193 classified as long-term restricted investments on its condensed consolidated balance sheets. Refer to footnote 11 for a discussion of these restricted investments.
Revenue Recognition
     The Company derives revenue from the licensing of software products and software upgrades; the sale of hardware products, maintenance and support services; and the sale of professional services, including training. The Company’s products incorporate software that is more than incidental to the related hardware. Accordingly, the Company recognizes revenue in accordance with the American Institute of Certified Public Accountants’ Statement of Position No. 97-2, Software Revenue Recognition (“SOP No. 97-2”).
     Under multiple-element arrangements where several different products or services are sold together, the Company allocates revenue to each element based on vendor specific objective evidence (“VSOE”) of fair value. It uses the residual method when fair value does not exist for one or more of the delivered elements in a multiple-element arrangement. Under the residual method, the fair value of the undelivered elements are deferred and subsequently recognized when earned. For a delivered item to be considered a separate element, the undelivered items must not be essential to the functionality of the delivered item and there must be VSOE of fair value for the undelivered items in the arrangement. Fair value is generally limited to the price charged when the Company sells the same or similar element separately or, when applicable, the stated substantive renewal rate. If evidence of the fair value of one or more undelivered elements does not exist, all revenue is deferred and recognized after delivery of those elements occurs or when fair value can be established. For example, in situations where the Company sells

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a product during a period when it has a commitment for the delivery or sale of a future specified software upgrade, the Company defers revenue recognition until the specified software upgrade is delivered.
     Significant judgments in applying the accounting rules and regulations to the Company’s business practices principally relate to the timing and amount of revenue recognition given its current concentration of revenues with one customer and its inability to establish VSOE of fair value for specified software upgrades.
     The Company sells its products primarily through original equipment manufacturer (“OEM”) arrangements with telecommunications infrastructure vendors such as Nortel Networks. The Company has collaborated with its OEM customers on a best efforts basis to develop initial product features and subsequent enhancements for the products that are sold by a particular OEM to its wireless operator customers. For each OEM customer, the Company expects to continue to develop products based on its core technology that are configured for the requirements of the OEM’s base stations and its operator customers.
     This business practice is common in the telecommunications equipment industry and is necessitated by the long planning cycles associated with wireless network deployments coupled with rapid changes in technology. Large and complex wireless networks support tens of millions of subscribers and it is critical that any changes or upgrades be planned well in advance to ensure that there are no service disruptions. The evolution of the Company’s infrastructure technology therefore must be planned, implemented and integrated with the wireless operators’ plans for deploying new applications and services and any equipment or technology provided by other vendors.
     Given the nature of the Company’s business, the majority of its sales are generated through multiple-element arrangements comprised of a combination of product, maintenance and support services and, importantly, specified product upgrades. The Company has established a business practice of negotiating with OEMs the pricing for future purchases of new product releases and specified software upgrades. The Company expects that it will release one or more optional specified upgrades annually. To determine whether these optional future purchases are elements of current purchase transactions, the Company assesses whether such new products or specified upgrades will be offered to the OEM customer at a price that represents a significant and incremental discount to current purchases. Because the Company sells uniquely configured products through each OEM customer, it does not maintain a list price for its products and specified software upgrades. Additionally, as it does not sell these products and upgrades to more than one customer, the Company is unable to establish VSOE of fair value for these products and upgrades. Consequently, the Company is unable to determine if the license fees it charges for the optional specified upgrades include a significant and incremental discount. As such, the Company defers all revenue related to current product sales, software-only license fees, maintenance and support services and professional services until all specified upgrades committed at the time of shipment have been delivered. For example, the Company recognizes deferred revenue from sales to an OEM customer only after it delivers a specified upgrade that it had previously committed. However, when it commits to an additional upgrade before it has delivered a previously committed upgrade, the Company defers all revenue from product sales after the date of such commitment until it delivers the additional upgrade. Any revenue that the Company had deferred prior to the additional commitment is recognized after the previously committed upgrade is delivered.
     If there are no commitments outstanding for specified upgrades, the Company recognizes revenue when all of the following have occurred: (1) delivery (FOB origin), provided that there are no uncertainties regarding customer acceptance; (2) there is persuasive evidence of an arrangement; (3) the fee is fixed or determinable; and (4) collection of the related receivable is reasonably assured, as long as all other revenue recognition criteria have been met. If there are uncertainties regarding customer acceptance, the Company recognizes revenue and related cost of revenue when those uncertainties are resolved. Any adjustments to software license fees are recognized when reported to the Company by an OEM customer.
     For its direct sales to end user customers, which have not been material to date, the Company recognizes product revenue upon delivery, provided that all other revenue recognition criteria have been met.
     The Company’s support and maintenance services consist of the repair or replacement of defective hardware, around-the-clock help desk support, technical support and the correction of bugs in its software. The Company’s annual support and maintenance fees are based on a fixed dollar amount associated with, or a percentage of the initial sales or list price for, the applicable hardware and software products. Included in the price of the product, the

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Company provides maintenance and support during the product warranty period, which is typically two years for base station channel cards and one year for all other products.
     When VSOE of fair value for maintenance and support services exists, the Company allocates a portion of the initial product revenue to the maintenance and support services provided during the warranty period based on the fees the Company charges for annual support and maintenance when sold separately. This revenue is also deferred with the associated product revenue until such time as all outstanding specified software upgrades at the time of shipment are delivered, at which time the earned support and maintenance revenue is recognized and the unearned support and maintenance revenue is recognized over the remainder the applicable warranty period.
     When VSOE of fair value or maintenance and support services does not exist, all revenue is deferred and recognized ratably over the warranty period. If there are outstanding specified upgrades at the time of shipment, revenue is deferred until such time as all such upgrades outstanding at the time of shipment are delivered. At the time of the delivery of all such upgrades, the Company will recognize a proportionate amount of revenue related to the amount of the warranty period that has lapsed at the date of delivery, and the unearned revenue will be recognized over the remainder of the applicable warranty period. In connection with an amendment to the Company’s OEM arrangement with Nortel Networks dated September 28, 2007, the Company can no longer assert VSOE of fair value for maintenance and support services to Nortel Networks. Although unable to establish VSOE of fair value of maintenance and support services under SOP No. 97-2 for revenue recognition purposes, the Company presents product and service revenue separately on its consolidated statements of operations by applying the maintenance and support services renewal rates in effect at the time of sale.
     For maintenance and service renewals, the Company recognizes revenue for such services ratably over the service period as services are delivered.
     The Company provides professional services for deployment optimization, network engineering and radio frequency deployment planning, and provides training for network planners and engineers. The Company generally recognizes revenue for these services as the services are performed as it has deemed such services not essential to the functionality of its products. The Company has not issued any refunds on products sold. As such, no provisions have been recorded against revenue or related receivables for potential refunds.
Segment and Geographic Information
     Statement of Financial Accounting Standards (“SFAS”) No. 131, Disclosures About Segments of an Enterprise and Related Information (“SFAS No. 131”), establishes standards for reporting information about operating segments in annual financial statements and requires selected information of these segments be presented in interim financial reports to stockholders. Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in making decisions on how to allocate resources and assess performance. The Company’s chief operating decision making group, as defined under SFAS No. 131, consists of the Company’s chief executive officer, chief financial officer and executive vice presidents. The Company views its operations and manages its business as one operating segment.
Stock-Based Compensation
     In December 2004, the Financial Accounting Standards Board (“FASB”) issued SFAS No. 123 (revised 2004), Share-Based Payment (“SFAS No. 123(R)”), which is a revision of SFAS No. 123. SFAS No. 123(R) requires all share-based payments to employees, including grants of employee stock options, to be recognized in the income statement based on their estimated fair values. In accordance with SFAS No. 123(R), the Company recognizes the compensation cost of share-based awards on a straight-line basis over the vesting period of the award, which is generally four to five years, and the Company has elected to use the Black-Scholes option pricing model to determine fair value. SFAS No. 123(R) eliminated the alternative of applying the intrinsic value method of Accounting Principles Board (“APB”) Opinion No. 25 to stock compensation awards. The Company adopted the provisions of SFAS No. 123(R) on the first day of fiscal 2006 using the prospective-transition method. As such, the Company will continue to apply APB Opinion No. 25 in future periods to equity awards granted prior to the adoption of SFAS No. 123(R).
Comprehensive Income

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     SFAS No. 130, Reporting Comprehensive Income, establishes standards for reporting and displaying comprehensive income and its components in financial statements. Comprehensive income is defined as the change in stockholders’ equity of a business enterprise during a period from transactions and other events and circumstances from nonowner sources. Comprehensive income for all periods presented is equal to the reported net income.
Income Taxes
     The Company accounts for income taxes in accordance with SFAS No. 109, Accounting for Income Taxes (“SFAS No. 109”), which is the asset and liability method for accounting and reporting income taxes. Under SFAS No. 109, deferred tax assets and liabilities are recognized based on temporary differences between the financial reporting and income tax bases of assets and liabilities using statutory rates. In addition, SFAS No. 109 requires a valuation allowance against net deferred tax assets if, based upon the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.
     The Company adopted the provisions of Financial Standards Accounting Board Interpretation No. 48, Accounting for Uncertainty in Income Taxes (“FIN 48”) on January 1, 2007. FIN 48 is an interpretation of SFAS No. 109, which provides criteria for the recognition, measurement, presentation and disclosures of uncertain tax positions. A tax benefit from an uncertain tax position may be recognized if it is “more likely than not” that the position is sustainable based solely on its technical merits. There was no effect to the Company’s financial statements at the implementation date. As of December 30, 2007 and June 29, 2008, the Company had approximately $4,700 of unrecognized tax benefits.
New Pronouncements
     In December 2007, the FASB issued SFAS No. 141(R), Business Combinations (“SFAS No.141(R)”), which replaces SFAS No. 141, which was issued in 2001. SFAS 141(R) applies to all transactions in which an entity obtains control of one or more businesses and establishes principles and requirements for how the acquirer:
  a.   Recognizes and measures in its financial statements the identifiable assets acquired, the liabilities assumed, and any noncontrolling interest in the acquiree at their acquisition-date fair values;
 
  b.   Recognizes and measures the goodwill acquired in the business combination or a gain from a bargain purchase; and
 
  c.   Determines what information to disclose to enable users of the financial statements to evaluate the nature and financial effects of the business combination.
     While SFAS No. 141 permitted deferred recognition of pre-acquisition contingencies until the contingency was resolved and consideration was issued or issuable, SFAS No. 141(R) requires an acquirer to recognize assets acquired and liabilities assumed arising from contractual contingencies as of the acquisition date, measured at their acquisition-date fair values. Acquisition costs, such as legal, accounting and other professional and consulting fees, are to be expensed in the periods in which the costs are incurred and the services are received, except for costs to issue debt or equity securities. SFAS No. 141(R) will be effective for the Company for business combinations for which the acquisition date is on or after January 1, 2009. The Company does not expect the adoption of SFAS No. 141(R) to have a material impact on the Company’s consolidated financial statements.
     In September 2006, the FASB issued SFAS No. 157, Fair Value Measurements (“SFAS No. 157”). SFAS No. 157 defines fair value, establishes a framework for measuring fair value and expands disclosure requirements about fair value measurements. SFAS No. 157 was effective on January 1, 2008. However, in February 2008, the FASB released FASB Staff Position FAS 157-2 — Effective Date of FASB Statement No. 157 (“FSP FAS 157-2”), which delayed the effective date of SFAS No. 157 for all nonfinancial assets and nonfinancial liabilities, except those that are recognized or disclosed at fair value in the financial statements on a recurring basis (at least annually). The adoption of SFAS No. 157 for the Company’s financial assets and liabilities did not have a material impact on its consolidated financial statements. The Company has not yet adopted the provisions of SFAS No. 157 for the Company’s non-financial assets and liabilities. The Company is currently evaluating the impact that the adoption of

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SFAS No. 157 for the Company’s non-financial assets and liabilities will have on its consolidated financial statements.
     In December 2007, the FASB issued SFAS No. 160, Noncontrolling Interests in Consolidated Financial Statements (“SFAS No. 160”). SFAS No. 160 amends Accounting Research Bulletin No. 51 to establish accounting and reporting standards for the noncontrolling (i.e. minority) interest in a subsidiary and for the deconsolidation of a subsidiary. SFAS No. 160 will require, among other things, that a minority interest shall be clearly identified and presented within the equity section of a consolidated balance sheet and that the amount of consolidated net income attributable to the parent and to the noncontrolling interest be clearly identified and presented on the face of a consolidated statement of income. SFAS No. 160 will be effective for fiscal years beginning after December 15, 2008. The adoption of SFAS No. 160 is not expected to have a material effect on the Company’s consolidated financial statements.
     In April 2008, the FASB issued FASB Staff Position 142-3, Determination of the Useful Life of Intangible Assets (“FSP 142-3”), which amends the factors that must be considered in developing renewal or extension assumptions used to determine the useful life over which to amortize the cost of a recognized intangible asset under SFAS No. 142. FSP 142-3 amends paragraph 11(d) of SFAS No. 142 to require an entity to consider its own assumptions about renewal or extension of the term of the arrangement, consistent with its expected use of the asset.
     FSP 142-3 also requires the following incremental disclosures for renewable intangible assets:
    The weighted-average period prior to the next renewal or extension (whether explicit and implicit) for each major intangible asset class
 
    The entity’s accounting policy for the treatment of costs incurred to renew or extend the term of a recognized intangible asset
 
    For intangible asset renewed or extended during the period:
  o   For entities that capitalize renewal or extension costs, the costs incurred to review or extend the asset, for each major intangible asset class
 
  o   The weighted-average period prior to the next renewal or extension (whether explicit and implicit) for each major intangible asset class
     FSP 142-3 is effective for financial statements for fiscal years beginning after December 15, 2008. The guidance for determining the useful life of a recognized intangible asset must be applied prospectively to intangible assets acquired after the effective date. Early adoption is prohibited. Accordingly, FSP 142-3 would not serve as a basis to change the useful life of an intangible asset that was acquired prior to the effective date (January 1, 2009 for a calendar year company). However, the incremental disclosure requirements described above would apply to all intangible assets, including those recognized in periods prior to the effective date of FSP 142-3. The Company is currently evaluating the impact that the adoption of FSP 142-3 will have on its consolidated financial statements.
3. Investments
     In accordance with SFAS No. 115, Accounting for Certain Investments in Debt and Equity Securities, the Company has classified its investment securities as held-to-maturity. These securities are reported at amortized cost, which approximates fair market value.
     The amortized cost and estimated fair value of the Company’s investment securities are as follows:
                                 
    December 30, 2007     June 29, 2008  
    Amortized     Fair Market     Amortized     Fair Market  
    Cost     Value     Cost     Value  
Corporate debt securities
  $ 124,385     $ 124,856     $ 108,612     $ 108,765  
Credit card asset-backed securities
    54,031       54,092       22,753       22,811  
Debt securities of U.S. government agencies
                60,814       60,780  
 
                       
 
  $ 178,416     $ 178,948     $ 192,179     $ 192,356  
 
                       

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     All held-to-maturity investment securities mature in less than one year as of December 30, 2007. Held-to-maturity investment securities of $189,111 are expected to mature in less than one year as of June 29, 2008. Investments of $3,068 are expected to mature between one to two years as of June 29, 2008.
     During the quarter ended March 30, 2008, the Company sold certain credit card asset backed securities which were classified as held-to-maturity due to a deterioration of creditworthiness of the underlying trusts that issued the securities. The Company routinely monitors all of its investments, and for the securities that were sold, certain liquidity and cash flow metrics tracked by the Company had recently deteriorated. The Company believed that it was prudent to liquidate these investments prior to any potential downgrades by credit analysts. The Company sold a total of eight securities having a total amortized cost of $16,631 and realized a gain on sale of these investments of $83.
     The Company intends to hold all of the securities it held as of June 29, 2008 to maturity, but will continue to monitor the creditworthiness of all securities.
     As of June 29, 2008, the Company had 19 securities in an unrealized loss position totaling less than $95 and 0.05% of amortized cost. As a result, the Company has concluded there is no other-than-temporary impairment.
4. Goodwill and Intangible Assets
     As of December 31, 2007, goodwill and intangible assets, net, consist of goodwill of $7,998 and acquired intangible assets of $4,167; and as of June 29, 2008, goodwill and intangible assets, net, consist of goodwill of $7,998 and acquired intangible assets of $3,633, which consist of the following:
                         
    June 29, 2008  
    Gross     Accumulated     Net  
    Intangible     Amortization     Intangible  
Developed technology
  $ 3,340     $ 779     $ 2,561  
Customer relationships
    1,350       394       956  
Non-compete agreements
    190       74       116  
 
                 
Total intangible assets
  $ 4,880     $ 1,247     $ 3,633  
 
                 
                         
    December 30, 2007  
    Gross     Accumulated     Net  
    Intangible     Amortization     Intangible  
Developed technology
  $ 3,340     $ 446     $ 2,894  
Customer relationships
    1,350       225       1,125  
Non-compete agreements
    190       42       148  
 
                 
Total intangible assets
  $ 4,880     $ 713     $ 4,167  
 
                 
     Amortization expense on intangible assets for the three months ended July 1, 2007 was $178, for the three months ended June 29, 2008 was $267, for the six months ended July 1, 2007 was $178 and for the six months ended June 29, 2008 was $534. Expected future amortization of intangible assets for fiscal years indicated is as follows:
         
Fiscal year:
       
Remainder of 2008
  $ 535  
2009
    1,069  
2010
    1,026  
2011
    780  
2012
    223  
 
     
 
  $ 3,633  
 
     

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5. Fair Value Measurements
     Effective January 1, 2008, the Company adopted SFAS No. 157, which defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. SFAS
     No. 157 establishes a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows:
  Level 1 — Quoted prices in active markets for identical assets or liabilities.
  Level 2 — Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.
  Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.
     The Company’s adoption of SFAS No. 157 did not have a material impact on its consolidated financial statements. As of June 29, 2008, the Company had investments disclosed in footnote 3 that were valued using Level 2 inputs (significant and observable assumptions) as follows:
         
    June 29,  
    2008  
Corporate debt securities
  $ 108,765  
Debt securities of U.S. government agencies
    60,780  
Credit card asset backed securities
    22,811  
 
     
 
  $ 192,356  
 
     
     In addition, as of June 29, 2008, the Company had cash equivalents in money market mutual funds that were valued using Level 1 inputs (quoted market prices for identical assets) as follows:
         
    June 29,  
    2008  
Money market mutual funds
  $ 32,262  
 
     
     The Company had $3,050 in other cash equivalents that are not included in the tables above as they are reported at fair value.
6. Income Taxes
     The Company’s effective tax rate for the three and six months ended June 29, 2008, inclusive of discrete items, was 38.2% and 46.6%, respectively. The tax expense for these periods relate principally to profits in the United States taxed at the federal and state statutory tax rate and the effect of losses from foreign operations for which no tax benefit can be recognized. The effect of discrete items on the effective tax rate for the three and six months ended June 29, 2008 was 0.1% and 0.4% respectively.
     For the three and six months ended July 1, 2007 the Company’s effective tax rate, inclusive of discrete items, was 10.8% and 13.4%, respectively. The tax expense for these periods relate principally to profits in the United States taxed at the federal and state statutory rate offset by benefits recognized from net operating loss and tax credit carryforwards. The effect of discrete items on the effective tax rate for the three and six months ended July 1, 2007 was 2.1% and 2.6%, respectively.
     The Company reviews all available evidence to evaluate the recovery of deferred tax assets, including the recent history of accumulated losses in all tax jurisdictions over the last three years as well as its ability to generate income in future periods. The Company has $11,070 in gross deferred tax assets against which $7,588 in valuation allowances have been recorded related to state tax credits and foreign losses as it is more likely than not that these assets will not be realized given the nature of the assets and the likelihood of future realization.
     The Company adopted the provisions of FIN 48, an interpretation of SFAS No. 109, on January 1, 2007. The Company recognized no material adjustment in the liability for unrecognized income tax benefits as a result of the implementation of FIN 48. At June 29, 2008, the Company had approximately $4,700 of unrecognized tax benefits, the benefit of which, if recognized, would reduce the Company’s effective tax rate. The Company does not anticipate a material change to the amount of unrecognized tax benefits over the next twelve months.
     The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. At June 29, 2008, the Company had $94 of interest accrued on its unrecognized tax benefits.

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     The Company and its subsidiaries file income tax returns in the U.S. federal tax jurisdiction as well as in various state and foreign jurisdictions. The statute of limitations for federal and state authorities is closed for years prior to the year ended January 2, 2005, although, net operating loss and tax credit carryforwards that were generated prior to 2004 may still be subject to examination if they either have been or will be utilized in tax years 2004 and forward. The statute of limitations for foreign tax jurisdictions is closed for tax years prior to December 31, 2002.
7. Property and Equipment
     Property and equipment are recorded at cost. The Company provides for depreciation by charges to operations on a straight-line basis in amounts estimated to allocate the cost of the assets over their estimated useful lives. Depreciation expense was $782 and $814 for the three months ended July 1, 2007 and June 29, 2008, respectively, and $1,504 and $1,621 for the six months ended July 1, 2007 and June 29, 2008, respectively. Expenditures for repairs and maintenance are expensed as incurred. Property and equipment consist of the following:
                         
            December 30,     June 29,  
    Estimated Useful Life   2007     2008  
Computer equipment and purchased software
  1.5 - 3 years   $ 5,343     $ 5,366  
Test and lab equipment
  3 years     5,100       6,046  
Leasehold improvements
  Shorter of life of lease or 5 years     6,497       6,448  
Office furniture and equipment
  3 - 5 years     891       884  
 
                   
Total property and equipment
            17,831       18,744  
Less: Accumulated depreciation and amortization
            (11,434 )     (13,007 )
 
                   
 
          $ 6,397     $ 5,737  
 
                   
     In connection with a lease incentive arrangement entered into as part of the Company’s headquarters lease, the Company received reimbursements of approximately $2,800 and $790 for leasehold improvements capitalized in the years ended January 1, 2006 and December 31, 2006, respectively. As a result of this arrangement, the Company recorded a lease incentive obligation for the reimbursed amount, and is amortizing that obligation as a reduction to rent expense over the term of the lease. As of December 30, 2007 and June 29, 2008, the unamortized amount was $2,218 and $1,957, respectively. During the three months ended July 1, 2007 and June 29, 2008, the Company amortized the lease incentive obligation by approximately $130 and $131, respectively. During the six months ended July 1, 2007 and June 29, 2008, the Company amortized the lease incentive obligation by approximately $260 and $261, respectively. The remaining lease incentive amounts are classified either as components of other accrued expenses or other long-term liabilities based on the future timing of amortization against rent expense.
8. Concentrations of Credit Risk and Significant Customers
     Financial instruments that subject the Company to credit risk consist of cash and cash equivalents, short-term and long-term investments, restricted investments and accounts receivable. The Company maintains its cash and cash equivalents and investment accounts with two major financial institutions. The Company’s cash equivalents and investments are invested in securities with high credit ratings.
     At December 30, 2007, the Company had one customer that accounted for 80% of accounts receivable. At June 29, 2008, the Company had one customer that accounted for 78% of accounts receivable. No other customers accounted for more than 10% of the Company’s total accounts receivable at either December 30, 2007 or June 29, 2008. The Company had one customer that accounted for 100% of revenues for the three months ended July 1, 2007 and one customer that accounted for 98% of revenues for the three months ended June 29, 2008. The Company had one customer that accounted for 100% of revenues for the six months ended July 1, 2007 and one customer that accounted for 98% of revenues for the six months ended June 29, 2008. The Company believes that all of its accounts receivable are collectible and therefore has not provided any reserve for doubtful accounts as of December 30, 2007 and June 29, 2008.

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9. Common Stock
Stock Option Plans
     As of December 31, 2006, the Company had one stock-based employee compensation plan, the Company’s 2000 Stock Incentive Plan (the “2000 Plan”), under which the Company could issue up to 21,005,251 shares of common stock. Under the 2000 Plan, the Company’s Board of Directors (the “Board”) could grant incentive stock options (“ISOs”) to employees of the Company and nonstatutory stock options (“NSOs”) to officers, employees, directors, consultants and advisors of the Company. Under the 2000 Plan, the Board determined the option price for all stock options, which generally expire ten years from the date of grant.
     In June 2007, the Company’s stockholders approved the 2007 Stock Incentive Plan (the “2007 Plan”). The 2007 Plan permits the Company to grant ISOs, NSOs, restricted stock awards and other stock-based awards. The number of shares of common stock that may be issued under the 2007 Plan equals the sum of 11,252,813 shares of common stock, any shares of common stock reserved for issuance under the 2000 Plan that remained available for issuance under the 2000 Plan immediately prior to the closing of the Company’s initial public offering (“IPO”) on July 19, 2007, any shares of common stock subject to awards under the 2000 Plan, which awards expire, terminate, or are otherwise surrendered, canceled, forfeited or repurchased without having been fully exercised, and an annual increase in the number of shares as described in the 2007 Plan.
     As there was no public market for the Company’s common stock prior to the Company’s IPO, the Company determined the volatility percentage used in calculating the fair value of stock options it granted based on an analysis of the historical stock price data for a peer group of companies that issued options with substantially similar terms. The expected volatility percentage used in determining the fair value of stock options granted in the six months ended July 1, 2007 was 78% and in the six months ended June 29, 2008 was 57%. The expected life of options has been determined utilizing the “simplified” method as prescribed by the SEC’s Staff Accounting Bulletin No. 107, Share-Based Payments and SFAS 123(R). The expected life of options granted during the six months ended July 1, 2007 was 6.5 years and during the six months ended June 29, 2008 was 6.25 years. For the six months ended July 1, 2007, the weighted-average risk free interest rate used was 4.65%. For the six months ended June 29, 2008, the weighted-average risk free interest rate used was 3.20%. The risk-free interest rate is based on a 7-year treasury instrument whose term is consistent with the expected life of the stock options. Although the Company paid a one-time special cash dividend in April 2007, the expected dividend yield is assumed to be zero as it does not currently anticipate paying cash dividends on its shares of common stock in the future. In addition, SFAS No. 123(R) requires companies to utilize an estimated forfeiture rate when calculating the expense for the period, whereas SFAS No. 123 permitted companies to record forfeitures based on actual forfeitures, which was the Company’s historical policy under SFAS No. 123. As a result, the Company applied an estimated forfeiture rate of 3.0% for the six months ended July 1, 2007 and 4% for the six months ended June 29, 2008 in determining the expense recorded in its consolidated statement of operations. This rate was derived by review of the Company’s historical forfeitures since 2000.
     Stock option activity under the 2007 Plan for the six months ended June 29, 2008 is summarized as follows:
                                         
                                    Weighted  
                                    Average  
            Weighted     Average             Grant Date  
            Average     Remaining             Fair  
    Number of     Exercise Price     Contractual     Aggregate     Value  
    Shares     per Share     Term in Years     Intrinsic Value     Per Share  
Outstanding at December 30, 2007
    13,335,453     $ 2.24       7.05     $ 44,728          
 
                               
Granted
    2,133,056       5.39                     $ 3.10  
 
                                     
Exercised
    (1,277,339 )     1.16             $ 5,293          
 
                                     
Cancelled
    (583,545 )     2.96                          
 
                                   
Outstanding at June 29, 2008
    13,607,625       2.80       6.92     $ 34,375          
 
                               
Exercisable at June 29, 2008
    6,916,055       1.57       5.57     $ 24,703          
 
                               
Options outstanding at June 29, 2008 expected to vest (1)
    13,195,918     $ 2.75       6.86     $ 33,907          
 
                               
 
(1)   This represents the number of vested stock options as of June 29, 2008 plus the unvested outstanding options at June 29, 2008 expected to vest in the future, adjusted for estimated forfeitures.

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     As of June 29, 2008, the Company has 11,251 shares of restricted stock which will vest over the next 7 months. These shares of restricted stock were granted prior the Company’s adoption of SFAS No. 123R under the prospective method at fair value on the date of grant and as a result, there is no future stock-based compensation expense to be recorded for these awards.
     For the three months ended July 1, 2007 and June 29, 2008, the Company recorded expense of $739 and $1,179, respectively, in connection with share-based awards. For the six months ended July 1, 2007 and June 29, 2008, the Company recorded expense of $1,253 and $2,264, respectively, in connection with share-based awards. As of June 29, 2008, future expense for non-vested stock options of $17,151 was expected to be recognized over a weighted-average period of 2.98 years. The adoption of SFAS No. 123(R) had no effect on cash flow for any period presented.
     The following table summarizes stock-based compensation expense related to employee and director stock options, employee stock purchases, and restricted stock grants for the three and six months ended July 1, 2007 and June 29, 2008, which were allocated as follows:
                                 
    Three Months     Six Months  
    Ended     Ended  
    July 1,     June 29,     July 1,     June 29,  
    2007     2008     2007     2008  
Cost of service revenue
  $ 44     $ 49     $ 77     $ 111  
Research and development
    451       684       744       1,355  
Selling and marketing
    172       274       316       497  
General and administrative
    72       172       116       301  
 
                       
Total stock-based compensation
  $ 739     $ 1,179     $ 1,253     $ 2,264  
10. Net Income Per Share
     The Company calculates net income per share in accordance with SFAS No. 128, Earnings Per Share, as clarified by Emerging Issues Task Force (“EITF”) Issue No. 03-6, which clarifies the use of the “two-class” method of calculating earnings per share as originally prescribed in SFAS No. 128. Effective for periods beginning after March 31, 2004, EITF Issue No. 03-6 provides guidance on how to determine whether a security should be considered a “participating security” for purposes of computing earnings per share and how earnings per share should be allocated to a participating security when using the two-class method for computing basic earnings per share. The Company has determined that its convertible preferred stock represented a participating security.
     Under the two-class method, basic net income per share is computed by dividing the net income applicable to common stockholders by the weighted-average number of common shares outstanding for the fiscal period. Diluted net income per share is computed using the more dilutive of (a) the two-class method or (b) the if-converted method. Diluted net income per share gives effect to all potentially dilutive securities, including stock options and unvested restricted common stock using the treasury stock method. Prior to the Company’s IPO, the Company allocated net income first to preferred stockholders based on dividend rights under the Company’s charter and then to common and preferred stockholders based on ownership interests. Net losses are not allocated to preferred stockholders. Effective with the Company’s IPO, all of the then outstanding preferred stock was converted into common stock and thus subsequent to the IPO, diluted net income per share is computed using the weighted average number of common shares and, if dilutive, potential common shares outstanding during the period. Potential common shares consist of the incremental common shares issuable upon the exercise of stock options, warrants and unvested common shares subject to repurchase or cancellation. The dilutive effect of outstanding stock options, restricted shares and warrants is reflected in diluted earnings per share by application of the treasury stock method. A reconciliation of the numerator and denominator used in the calculation of basic and diluted net income per share is as follows:

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    Three Months     Six Months  
    Ended     Ended  
    July 1,     June 1,     July 1,     June 1,  
    2007     2008     2007     2008  
Numerator:
                               
Net income
  $ 86,102     $ 20,563     $ 67,317     $ 8,889  
 
                       
Allocation of net income:
                               
Basic:
                               
Accretion of redeemable preferred stock
  $ 1,835     $     $ 3,669     $  
Dividend allocated to preferred stockholders
    53,803             47,736        
 
                               
Undistributed net income allocated to preferred stockholders
    8,554                    
 
                       
Net income applicable to preferred stockholders
    64,192             51,405        
 
                               
Net income applicable to common stockholders
    21,910       20,563       15,912       8,889  
 
                       
Net income
  $ 86,102     $ 20,563     $ 67,317     $ 8,889  
 
                       
Diluted:
                               
Accretion of redeemable preferred stock
  $ 1,835     $     $ 3,669     $  
Dividend allocated to preferred stockholders
  $ 47,260     $     $ 42,008     $  
Undistributed net income allocated to preferred stockholders
    7,514                    
 
                       
Net income applicable to preferred stockholders
    56,609             45,677        
 
                               
Net income applicable to common stockholders
    29,493       20,563       21,640       8,889  
 
                       
Net income
  $ 86,102     $ 20,563     $ 67,317     $ 8,889  
 
                       
 
                               
Denominator:
                               
Basic weighted average shares
    14,017       64,601       13,938       64,248  
 
                               
Dilutive effect of common stock equivalents
    7,509       6,162       6,855       6,150  
 
                       
Diluted weighted average shares
    21,526       70,763       20,793       70,398  
Calculation of net income per share:
                               
Basic:
                               
Net income applicable to common stockholders
  $ 21,910     $ 20,563     $ 15,912     $ 8,889  
Weighted average shares of common stock outstanding
    14,017       64,601       13,938       64,248  
Net income per share
  $ 1.56     $ 0.32     $ 1.14     $ 0.14  
 
                       
Diluted:
                               
Net income applicable to common stockholders
  $ 29,493     $ 20,563     $ 21,640     $ 8,889  
Weighted average shares of common stock outstanding
    21,526       70,763       20,793       70,398  
Net income per share
  $ 1.37     $ 0.29     $ 1.04     $ 0.13  
 
                       
     Diluted weighted average shares outstanding do not include options outstanding to purchase 1,482,249 and 3,883,005 shares of common stock for the three months ended July 1, 2007 and June 29, 2008, respectively, as their effect would have been anti-dilutive. Diluted weighted average shares outstanding do not include options outstanding to purchase 936,012 and 3,697,708 shares of common stock for the six months ended July 1, 2007 and June 29, 2008, respectively, as their effect would have been anti-dilutive.
11. Lease Commitments
     The Company conducts its operations in leased facilities, and rent expense charged to operations for the three months ended July 1, 2007 and June 29, 2008 was $324 and $364, respectively. Rent expense charged to operations for the six months ended July 1, 2007 and June 29, 2008 was $514 and $707, respectively.
     In October 2004, the Company entered into a seven-year lease agreement for its headquarters facility. The Company is obligated to pay monthly rent through 2012. The Company has the option to renew this lease for an additional 5 year term at a fair value rate to be determined at such time the Company exercises its renewal right. As part of this agreement, the Company obtained a standby letter of credit for the landlord totaling $142. The letter of credit is fully collateralized by a certificate of deposit maintained at the major financial institution that issued the letter of credit and is classified as a restricted investment in the accompanying condensed consolidated balance sheets.

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     In August 2005, the Company leased additional space adjacent to its headquarters, and increased the letter of credit and certificate of deposit by $51.
     Future minimum commitments as of June 29, 2008, under all of the Company’s operating leases, are as follows:
         
Fiscal year:
       
Remainder of 2008
  $ 806  
2009
    1,510  
2010
    1,545  
2011
    1,552  
2012
    439  
Thereafter
    9  
 
     
 
  $ 5,861  
 
     
12. Deferred Revenue and Deferred Product Cost
     Under the Company’s revenue recognition policy, as described above in Note 2, “Summary of Significant Accounting Policies,” the Company recognizes revenue from sales to an OEM customer only when it delivers a specified upgrade to which it has previously committed. When the Company commits to an additional upgrade before it has delivered a previously committed upgrade, it defers all revenue from product sales after the date of such commitment until it delivers the additional upgrade.
     The Company made a commitment for a specified future software upgrade in April 2005, which the Company refers to as its April 2005 specified upgrade. The Company delivered the April 2005 specified upgrade in April 2007. The Company committed to a subsequent specified upgrade in September 2006, which the Company refers to as its September 2006 specified upgrade. The Company delivered the September 2006 specified upgrade in November 2007. The Company committed to an additional subsequent specified upgrade in June 2007, which the Company refers as its June 2007 specified upgrade. The Company delivered the June 2007 specified upgrade in June 2008. The Company committed to additional subsequent specified upgrades in December 2007 and July 2008, which the Company refers to as its December 2007 specified upgrade and July 2008 specified upgrade, respectively. The Company expects to deliver the December 2007 specified upgrade in the fourth quarter of 2008.
     Deferred revenue and deferred product cost at June 29, 2008 consist of the following:
                         
    Current     Long-Term     Total  
Deferred revenue related to June 2007 specified upgrade
  $ 5,800     $     $ 5,800  
Deferred revenue related to December 2007 specified upgrade
    67,676             67,676  
Other deferred revenue
    2,898       1,022       3,920  
 
                 
Total deferred revenue
  $ 76,374     $ 1,022     $ 77,396  
 
                 
Deferred product cost related to June 2007 specified upgrade
  $ 88     $     $ 88  
Deferred product cost related to December 2007 specified upgrade
    856             856  
Other deferred product cost
    410             410  
 
                 
Total deferred product cost
  $ 1,354     $     $ 1,354  
 
                 
     Deferred revenue and deferred product cost at December 30, 2007 consist of the following:
                         
    Current     Long-Term     Total  
Deferred revenue related to April 2005 specified upgrade
  $ 44     $     $ 44  
Deferred revenue related to September 2006 specified upgrade
    6,191             6,191  
Deferred revenue related to June 2007 specified upgrade
    61,316             61,316  
Deferred revenue related to December 2007 specified upgrade
    11,273             11,273  
Other deferred revenue
    1,091       63       1,154  
 
                 
Total deferred revenue
  $ 79,915     $ 63     $ 79,978  
 
                 
Deferred product cost related to September 2006 specified upgrade
  $ 73     $     $ 73  
Deferred product cost related to June 2007 specified upgrade
    853             853  
Deferred product cost related to December 2007 specified upgrade
    124             124  
 
                 
Total deferred product cost
  $ 1,050     $     $ 1,050  
 
                 

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13. Accrued Expenses and Other Current Liabilities
     Accrued expenses and other current liabilities consist of the following:
                 
    December 30,     June 29,  
    2007     2008  
Payroll and related accruals
  $ 7,668     $ 5,493  
Accrued rent expense
    601       609  
Accrued legal fees
    173       96  
Accrued audit and tax
    504       509  
Accrued royalties
    771       951  
Other accruals
    1,445       1,489  
 
           
 
  $ 11,162     $ 9,147  
 
           
14. Acquisition
     On April 30, 2007, the Company acquired 3Way Networks Limited (“3Way Networks”), a United Kingdom-based provider of personal base stations and solutions for the Universal Mobile Telecommunications System (“UMTS”) market, for an aggregate purchase price of approximately $11,000 in cash and 441,845 shares of the Company’s common stock. This acquisition furthered the Company’s strategy to address the UMTS market and to deliver fixed-mobile convergence and in-building mobile broadband solutions.
     The Company accounted for this acquisition under the purchase method of accounting as prescribed by SFAS 141, Business Combinations. In connection with this acquisition, the Company recorded $7,998 of goodwill, $2,340 of in-process research and development (“IPR&D”) expense and $4,880 of intangible assets related to developed technology, customer relationships, and non-compete agreements with estimated useful lives ranging from 36 to 60 months and a weighted-average amortization period of 56 months. The estimated fair value of acquired intangible assets is assigned as follows:
             
        Estimated  
    Useful Life   Fair Value  
Developed Technology
  60 months   $ 3,340  
Customer Relationships
  48 months     1,350  
Non-Compete Agreements
  36 months     190  
 
         
Total Intangible Assets
      $ 4,880  
 
         
     Management used various valuation methods to determine the fair value of the acquired assets of 3Way Networks. To value the developed technology and customer relationship intangible assets, an income approach was used, specifically the relief-from-royalty method and the excess earning method, respectively. For the developed technology intangible asset, expenses and income taxes were deducted from estimated revenues attributable to the developed technologies. For the customer relationship intangible asset, expenses and income taxes were deducted from estimated revenues attributable to the existing customers. The projected net cash flows for each were then tax affected using an effective rate of 40%, and then discounted using a discount rate of 34% for the developed technology intangible asset and 39% for the customer relationship intangible asset, to determine the respective values of the intangible assets. To value the non-compete agreements an income approach was used, specifically the “with or without” model. Management then projected net cash flows for the Company with and without the non-compete agreements in place. The present value of the sum of the difference between the net cash flows with and without the non-compete agreements in place was calculated, based on a discount rate of 39%. IPR&D was determined by discounting forecasted cash flows directly related to the products expecting to result from the research and development, net of returns on contributory assets including fixed assets, and the acquired workforce and applying a discount rate of 42%.
     The Company allocated $2,340 to IPR&D expense for projects associated with femtocell based technology, which was expensed at the respective date of acquisition because it had no alternative use and had not yet reached technological feasibility. The value assigned to IPR&D at the acquisition date was determined by discounting forecasted cash flows directly related to the products expecting to result from the research and development, net of returns on contributory assets less cost of goods sold, general and administrative expenses, and selling and marketing expenses. The Company also deducted the cost to complete the IPR&D projects, which was estimated to

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be $9,600 over the next two years. Based upon the risk associated with this IPR&D relative to developed product technologies and the fact that the femtocell market has not yet developed, the Company applied a discount rate of 42%. The successful completion of these projects was a significant risk at the date of acquisition due to the remaining efforts to achieve technical viability, development of a femtocell market and competitive threats. If these projects are not successfully completed, there is no alternative use for the projects and the expected future income will not be realized.
     The following table summarizes the fair values of the assets acquired and liabilities assumed in connection with this acquisition.
         
    Fair Value  
    April 30, 2007  
Assets Acquired:
       
Current assets
  $ 462  
Fixed assets
    504  
Deferred tax asset
    509  
IPR&D
    2,340  
Intangible assets
    4,880  
Goodwill
    7,998  
 
     
 
    16,693  
 
       
Liabilities Assumed:
       
Current liabilities
    689  
Deferred tax liability
    1,464  
Non-current liabilities
    704  
 
     
 
    2,857  
 
     
Net assets acquired
  $ 13,836  
 
     
     Results of operations for 3Way Networks have been included in the Company’s results of operations since the acquisition date of April 30, 2007. As part of the acquisition of 3Way Networks, the Company assumed long-term debt of $543, which it repaid in full during fiscal 2007, and capital leases of $161, which it partially repaid in June 2008. As of June 29, 2008, the remaining principal amount owed under capital leases was $9.
Pro Forma Results of Operations
     The following pro forma results of operations for the three and six months ended July 1, 2007 have been prepared as though the acquisitions of 3Way Networks had occurred as of January 1, 2007. This pro forma financial information is not indicative of the results of operations that the Company would have attained had the acquisition of 3Way Networks occurred at the beginning of the periods presented. nor is the proforma financial information indicative of the results of operations that may occur in the future.
                 
    Three Months Ended   Six Months Ended
    July 1, 2007   July 1, 2007
Pro forma revenues
  $ 156,256     $ 156,980  
Pro forma net income
  $ 85,832     $ 66,791  
Pro forma earnings per share
  $ 1.56     $ 1.13  

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15. Special Cash Dividend
     On March 8, 2007, the Company declared a special cash dividend of $1.333 per common stock equivalent payable on April 5, 2007 to stockholders of record on March 28, 2007. The payment to holders of common stock and redeemable convertible preferred stock in April 2007 was $72,771. In conjunction with this dividend and as required by the Company’s stock incentive plan, all vested and unvested options outstanding were adjusted by multiplying the exercise price by 0.8113 and the number of shares of common stock issuable upon exercise of the option by 1.2326. As the fair value of the modified stock option grants was the same as the fair value of the original option grants immediately before the modification, no incremental compensation cost was recognized as a result of this special cash dividend. The option information in Note 9 reflects these adjustments to the outstanding awards. The Company has not declared or paid any other cash dividends on its capital stock.
16. Related Party Transactions
     In 2000, the Company entered into an agreement with Qualcomm Incorporated under which it licenses software for use in the development of infrastructure equipment. The Company also entered into a supply and distribution agreement with Qualcomm relating to the Company’s ipBTS products. The Company paid Qualcomm approximately $924 during the six months ended June 29, 2008 in upfront license payments, royalties and component purchases under its license and supply agreements with Qualcomm. During the six months ended June 29, 2008, Qualcomm paid the Company $406 for prototype purchases. Amounts due to Qualcomm of $372 and $300 were included in accrued expenses and other current liabilities as of December 30, 2007 and June 29, 2008, respectively. As of June 29, 2008, Qualcomm owned approximately 9.0% of the Company’s outstanding common stock.
     Some of the technology that the Company incorporates into its EV-DO products and sells to Nortel Networks is licensed from Qualcomm. Historically, the Company utilized this technology under a license agreement between the Company and Qualcomm and between Nortel Networks and Qualcomm. Some of the royalties for this technology were paid to Qualcomm by Nortel Networks. Qualcomm recently undertook an audit of the royalties that were paid in respect of the EV-DO products that the Company sold between 2003 and 2007. In connection with the audit, Qualcomm indicated that, due to a change in its licensing arrangement with Nortel Networks, the Company may owe additional royalties of up to approximately $8,000 to Qualcomm for products that the Company sold to Nortel beginning in 2007. The Company believes that the Company should not be responsible for any such royalties to Qualcomm because, among other things, the Company had established a course of dealing with Qualcomm in which Nortel Networks paid the royalties for such licensed technology and the Company had not been notified of the modifications to Qualcomm’s licensing arrangement with Nortel Networks. As such, the Company has not provided for any potential liability in regard to this matter.
17. Subsequent Events
     In July 2008, the Board approved a share repurchase program authorizing the Company to purchase up to $20,000 of its common stock over the next 12 months. The share repurchase program terminates on July 29, 2009 or earlier if the Company so elects. The purchases of common stock will be executed periodically on the open market under a Rule 10b5-1 plan as market and business conditions warrant, which permits shares to be repurchased when the Company might otherwise have been precluded from doing so under insider trading laws. The Company plans to enter into the Rule 10b5-1 plan in August 2008. As of August 5, 2008, the Company has not repurchased any shares under this program.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
     This Quarterly Report on Form 10-Q contains “forward-looking statements” that involve risks and uncertainties, as well as assumptions that, if they never materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. The statements contained in this Quarterly Report on Form 10-Q that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such forward-looking statements include any expectation of earnings, revenues, billings or other financial items; any statements of the plans, strategies and objectives of management for future operations; factors that may affect our operating results; statements concerning new products or services; statements related to future capital expenditures; statements related to future economic conditions or performance; statements as to industry trends and other matters that do not relate strictly to historical facts or statements of assumptions underlying any of the foregoing. These statements are often identified by the use of words such as, but not limited to, “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “will,” “plan,” “target,” “continue,” and similar expressions or variations intended to identify forward-looking statements. These statements are based on the beliefs and assumptions of our management based on information currently available to management. Such forward-looking statements are subject to risks, uncertainties and other important factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those identified below, and those discussed in Part II, Item 1A “Risk Factors” included elsewhere in this Quarterly Report on Form 10-Q and in our other filings with the SEC. Furthermore, such forward-looking statements speak only as of the date of this report. We undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements.
Overview
     We specialize in helping operators transform the mobile experience of users worldwide. Our high-performance technology and products, from our newly introduced comprehensive femtocell solutions to our core mobile network infrastructure, enable operators to deliver broadband services to mobile devices, independent of physical location.
     Most of our current products are based on a wireless communications standard known as EV-DO. In 2002, we began delivering commercial infrastructure products based on the first generation EV-DO standard known as Rev 0. The second generation EV-DO standard is known as Rev A, and supports push-to-talk, voice-over-IP and faster Internet services. We delivered our Rev A software release in April 2007. Prior to 2008, most of our EV-DO sales were driven by operator deployments focused on coverage — with operators extending their broadband services across larger portions of their subscriber geographies. Data traffic and service revenue growth continues to outpace voice growth at many major wireless operators around the world. Our EV-DO sales in 2008 have been driven by capacity growth as operators look to expand their capacity. Over the longer term, we expect our EV-DO sales to continue to be driven by capacity growth as operators acquire more broadband subscribers, and as these users consume more broadband data.
     We have developed a unique business model to serve mobile operators and our OEM customers with embedded software products. This software is deployed in an OEM’s installed base of wireless networks. These networks are designed to deliver high quality wireless services to millions of consumers and are built and continuously upgraded over long periods of time, often 10 to 15 years. A key element of our strategy is to deliver significant increases in performance and functionality to both our OEM customers and to operators through software upgrades to these networks. In 2007, we delivered two major EV-DO software releases that provide for deployment of high-performance multi-media applications by enabling faster downlink and uplink speeds, support for push-to-talk services, and add new proprietary “clustering” features that are designed to dramatically improve network scalability. In June 2008 we delivered our latest EV-DO software release which enables mobile operators to more efficiently increase capacity and accelerate the roll-out of next-generation multimedia services.
     We are also investing significantly in fixed mobile convergence, or FMC, products that transform the experience of using mobile devices indoors, providing benefits such as better coverage, better quality and performance of broadband applications, and lower costs for both users and operators. Our FMC products enable operators to take advantage of wireline broadband connections such as cable, DSL, or fiber that already exist in most offices and homes to connect mobile devices to an operator’s services. There are two ways to accomplish this. The first is to use WiFi and the second is to place a personal base station, or what the industry refers to as a femtocell access point, in the home or office. To address both of these market opportunities, we are developing our universal access gateway, or UAG, product to manage security and hand-offs when connecting a WiFi phone or a femtocell product to an operators’ network. Currently, there is significant operator interest in our FMC products, especially in femtocells, as

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they work with existing handsets. Our FMC products will include versions to support CDMA, UMTS and WiMAX networks. Our FMC products are an important component of our growth and diversification strategy. We also utilize our mobile broadband technology and products in specialized market segments that need their own mobile networks.
     We were founded in March 2000 and sold our first product in the second quarter of fiscal 2002. Our growth has been driven primarily by sales through our OEM customers to wireless operators already using our EV-DO products as they increase the capacity and geographic coverage of their networks, and by an increase in the number of wireless operators that decide to deploy our EV-DO products on their networks. We have sold nearly 50,000 channel card licenses for use by over 70 operators worldwide.
     In April 2007, we acquired 3Way Networks Limited, a United Kingdom-based provider of femtocell products and solutions for UMTS networks, for an aggregate purchase price of approximately $11.0 million in cash and 441,845 shares of common stock. The acquisition furthered our strategy to address the UMTS market and to deliver FMC and in-building mobile broadband solutions.
     In July 2007, we completed our IPO, in which we sold and issued 8.3 million shares of our common stock at an issue price of $7.00 per share. We raised a total of $58.1 million in gross proceeds from our IPO, or $50.8 million in net proceeds after deducting underwriting discounts and commissions of $4.1 million and other offering costs of approximately $3.2 million.
     In September 2007, we entered into an agreement with Nortel Networks amending certain provisions of the Development and Purchase and Sale Agreement for CDMA High Data Rate (1xEV-DO) Products, dated as of October 1, 2001 between us and Nortel Networks, in which we agreed to pricing for our products and services, including pricing for software products and upgrades that were under development at the time and were subsequently delivered during the first half of 2008.
     In September 2007, we entered into an agreement with Nokia Siemens Networks to certify interoperability of our UMTS femtocell product with Nokia Siemens Network’s femto gateway product. We and Nokia Siemens Networks plan to provide a joint solution to operators, and cooperate in joint marketing, sales and support programs. The agreement is non-exclusive and sets forth the terms under which we may use their proprietary interface specifications of their products.
     In January 2008, we entered into a global sourcing agreement with Thomson to supply our UMTS femtocell technology. Pursuant to the agreement, Thomson may use our femtocell products in conjunction with its own residential gateway offerings. The agreement is non-exclusive and sets forth the terms and conditions under which Thompson may purchase our femtocell products. The term of the agreement extends through January 2011, with automatic annual renewals. Either party may terminate the agreement with 90 days notice.
     In March 2008, we entered into a global OEM agreement with Motorola to provide them with our CDMA femtocell solution products. The agreement is non-exclusive and sets forth the terms and conditions under which Motorola may purchase our femtocell and UAG products. The initial term of the agreement extends through May 2010, with automatic annual renewals. Following the initial term, Motorola may terminate the agreement with 180 days notice.
     In June 2008, we entered into an agreement with Alcatel-Lucent to develop an integrated IP Multimedia Subsystem (IMS) femtocell solution for CDMA network operators that combines Airvana’s femtocell access point and femtocell network gateway with Alcatel-Lucent’s IMS core network infrastructure.
     In July 2008, we entered into an agreement with Hitachi to develop a joint CDMA femtocell solution that integrates Airvana’s femtocell solution with Hitachi’s core radio access network infrastructure for the Japanese market.
Our OEM Business Model
     We operate in the highly consolidated and competitive market for mobile broadband equipment. To compete in this market, we have developed OEM channels, unique products and a business approach that targets the needs of large equipment vendors and their end customers, wireless operators. Wireless operators invest significantly in building out large-scale wireless networks, which are very costly to replace. Equipment vendors compete aggressively to win market share and they retain their market position by upgrading their installed systems regularly,

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thereby enabling their wireless operator customers to deliver new services to their subscribers. These vendors develop detailed product roadmaps and look to us to design and deliver software upgrades that are consistent with their roadmaps.
     We collaborate with our OEM customers to develop specific features for products that they sell to their wireless operator customers. We expect to continue to develop, for each OEM customer, products based on our core technology that are configured specifically to meet the requirements of each OEM and its customers. We also offer our OEM customers the option to purchase and make available to their wireless operator customers new products and specified upgrades at prices that we set typically several months prior to the new product or specified upgrade release. We expect that we will release one or more specified upgrades per year and that revenue from these specified upgrades will increase as a percentage of our product revenue over time.
     Our OEM customers typically are also potential competitors of ours in the markets that they serve. We face the competitive risk that our OEM customers might seek to develop internally alternative solutions or to purchase alternative products from our competitors. Our future success depends on our ability to continue to develop products that offer advantages over alternative solutions that our OEM customers might develop or purchase from others.
     Our typical sales arrangements involve multiple elements, including: perpetual licenses for our software products and specified software upgrades; the sale of hardware, maintenance and support services; and the sale of professional services, including training. Software is more than incidental to all of our products and, as a result, we recognize revenue in accordance with the American Institute of Certified Public Accountants’ Statement of Position, or SOP, No. 97-2, Software Revenue Recognition.
Impact of SOP No. 97-2, Software Revenue Recognition
     To recognize revenue from current product shipments, we must establish vendor specific objective evidence, or VSOE, of fair value for all undelivered elements of our sales arrangements, including our specified software upgrades. The best objective evidence of fair value would be to sell these specified software upgrades separately to multiple customers for the same price. However, because of our OEM business model, the features and functionality delivered in our software upgrades are defined in collaboration with our OEMs based on each OEM’s particular requirements. As a result, it is highly unlikely that we will ever be able to sell the same standalone software upgrade to a different OEM customer and thus establish VSOE of fair value for such upgrade.
     As a result, we defer all revenue from sales to OEMs until all elements without VSOE of fair value have been delivered. This deferral is required because there is no basis to allocate revenue between the delivered and undelivered elements of the arrangement without VSOE of fair value. The revenue deferral is necessary even though (1) our specified software upgrades are not essential to the standalone functionality of any product currently deployed, (2) the purchase of our upgrades are based on separate decisions by our OEM customers and generally require separate payment at the time of delivery and (3) there is no refund liability for payments received on any previously shipped and installed product in the event we are not able to deliver the specified upgrade.
     We recognize deferred revenue from sales to an OEM customer only when we deliver a specified upgrade that we have previously committed. When we commit to an additional upgrade before we have delivered a previously committed upgrade, we defer all revenue from product sales after the date of such commitment until we deliver the additional upgrade. Any revenue that we had deferred prior to the additional commitment is recognized when the previously committed upgrade is delivered.
     The following diagram presents a hypothetical example of how software product releases and commitments to specified upgrades affect the relationship between billings, product revenue and deferred product revenue under a business model similar to ours. The diagram is not intended to reflect the actual timing of any of our software releases or the actual level of our product and service billings, revenue or deferred revenue in any period.

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(GRAPH)
 
 
 Software release A is delivered and related product and service billings are recognized as revenue because there are no outstanding commitments for upgrades.
 
  Software upgrade B is committed in Period 1 and, therefore, product and service billings for shipments of software release A after that point cannot be recognized as revenue before software upgrade B is delivered.
 
ƒ   Before software upgrade B is delivered, software upgrade C is committed in Period 2 and, therefore, product and service billings for shipments of software release A after that point cannot be recognized before software upgrade C is delivered.
 
  When software upgrade B is delivered in Period 3, all deferred revenue, which consists of deferred revenue from billings of software release A, from the time of the commitment of software upgrade B until the time of the commitment of software upgrade C is recognized, subject to having vendor-specific objective evidence (“VSOE”) of fair value for maintenance and support services.
 
  When software upgrade C is delivered in Period 4, all remaining deferred revenue from the time of the commitment of software upgrade C, which consists of deferred revenue from billings of software release A and software upgrade B, is recognized because no commitments are outstanding, subject to having VSOE of fair value for maintenance and support services.
As illustrated in this example, we begin to recognize our revenue in periods during which we deliver specified upgrades. When we have such revenue recognition events, we begin to recognize revenue from sales invoiced during multiple prior periods. As a result, we believe that our revenue, taken in isolation, provides limited insight into the performance of our business. We evaluate our performance by also assessing: product and service billings, which reflects our sales activity in a period; cost related to product and service billings, which reflects the cost

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associated with our product and service billings; deferred revenue at the end of the period, which reflects the cumulative billings that we were unable to recognize under our revenue recognition policy; deferred product cost at the end of a period, which reflects the cumulative costs that we were unable to recognize under our revenue recognition policy associated with our deferred product revenue; and cash flow from operating activities. We expect this pattern of commitments and delivery of future specified upgrades and the resulting impact on the timing of revenue recognition to continue with respect to our OEM business. As we introduce new products, the variability of the total revenue recognized in any fiscal period may moderate, provided that we are able to establish VSOE of fair value for these new products or upgrades to these new products, and as sales of these new products represent a larger percentage of our overall business.
Key Elements of Financial Performance
Revenue
     Our revenue consists of product revenue and service revenue from sales through our OEM customers and directly to our end customers.
     Product Revenue. Our product revenue is principally currently derived from the sale of our EV-DO mobile network products that are used by wireless operators to provide mobile broadband services. These products include four major components: base stations or OEM base station channel cards; radio network controllers, or RNCs; network management systems; and software upgrades to the OEM’s installed base. We have sold OEM base station channel cards both as hardware/software combinations and as software licenses when the OEM customer chooses to have the hardware manufactured for it by a third party. RNCs and network management systems are usually sold as software licenses as the OEM customer buys the hardware from another vendor. Almost all of our revenue and product and service billings to date have been derived from sales of our EV-DO products through our OEM agreement with Nortel Networks.
     We first derived revenue and product and service billings in fiscal 2002 from the sale of first generation EV-DO mobile network products based on the Rev 0 version of the standard. Prior to the third quarter of fiscal 2006, we sold Rev 0-based base station channel cards, which were manufactured for us by a third party, and licensed Rev 0 software for these OEM base station channel cards, as well as for RNCs and network management systems. In connection with the transition to products based on the Rev A version of the standard, Nortel Networks exercised its right to license our hardware design in order to manufacture the OEM base station channel cards that support Rev A instead of purchasing this hardware from us. As a result, beginning in the third quarter of fiscal 2006, our product sales to Nortel Networks are derived solely from the license of software, specifically Rev 0 and Rev A software for OEM base station channel cards, RNCs and network management systems, as well as Rev A software upgrades.
     Under our revenue recognition policy, as described above, we begin to recognize revenue from sales to an OEM customer only after we deliver a specified upgrade that we have previously committed. When we commit to an additional upgrade before we have delivered a previously committed upgrade, we defer all revenue from product sales after the date of such commitment until we deliver the additional upgrade.
     Our product revenue in fiscal 2006 consisted primarily of software license fees and hardware shipments to our primary OEM customer from fiscal 2002 through the first quarter of fiscal 2005, which is when we made an additional commitment for a specified future software upgrade. We refer to that software upgrade as our April 2005 specified upgrade. In April 2007, we delivered our April 2005 specified upgrade. As a result, we recognized product revenue of $141.5 million that consisted primarily of software license fees and hardware shipments to our primary OEM customer from April 2005 through September 2006, which is when we made another commitment for a specified future software upgrade. We refer to that software upgrade as our September 2006 specified upgrade. In the fourth quarter of fiscal 2007, we delivered our September 2006 specified upgrade. As a result, we recognized product revenue of $137.4 million that consisted primarily of software license fees and hardware shipments to our primary OEM customer from September 2006 through June 2007, which is when we made another commitment for a specified future software upgrade, which we refer to as the June 2007 specified upgrade. In June 2008, we delivered our June 2007 specified upgrade. As a result, we recognized product revenue of $53.5 million that consisted primarily of billings from software license fees to our primary OEM customer from June 2007 through December 2007, which is when we made another commitment for a specified future software upgrade, which we refer to as the December 2007 specified upgrade. As of June 29, 2008, there was one specified software upgrade that

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we had not yet delivered, the December 2007 specified upgrade that we expect to deliver in the fourth quarter of 2008. Subsequent to the end of the second quarter of fiscal 2008, in July 2008, the Company made an additional commitment for a specified future software upgrade, which we refer to as the July 2008 specified upgrade.
     Service Revenue. Our service revenue is derived from support and maintenance services for our EV-DO products and other professional services, including training. Our support and maintenance services consist of the repair or replacement of defective hardware, around-the-clock help desk support, technical support and the correction of bugs in our software. Our annual support and maintenance fees are based on a fixed-dollar amount associated with, or a percentage of the initial sales price for, the applicable hardware and software products. Included in the price for the product, we provide maintenance and support during our product warranty period, which is two years for our base station channel cards and one year for our software products. When VSOE of fair value for maintenance and support services exists, we allocate a portion of the initial product revenue to the maintenance and support services provided during the warranty period based on the fees we charge for annual support and maintenance and the length of the warranty period. This revenue is also deferred with the associated product revenue until such time as all outstanding specified future software upgrades at the time of shipment or sale are delivered, at which time a pro rata portion of the revenue is recognized over the remainder the applicable warranty period.
     When VSOE of fair value or maintenance and support services does not exist, all revenue is deferred and recognized ratably over the warranty period. If there are outstanding specified upgrades at the time of shipment, revenue is deferred until such time as all such upgrades outstanding at the time of shipment are delivered. At the time of the delivery of all such upgrades, we will recognize a proportionate amount of revenue related to the amount of the warranty period that has lapsed at the date of delivery, and the unearned revenue will be recognized over the remainder of the applicable warranty period. In connection with an amendment to the our OEM arrangement with Nortel Networks dated September 28, 2007, we can no longer assert VSOE of fair value for maintenance and support services to Nortel Networks. Although unable to establish VSOE of fair value of maintenance and support services under SOP No. 97-2 for revenue recognition purposes, we present product and service revenue separately on our consolidated statements of operations by applying the maintenance and support services renewal rates in effect at the time of sale.
     Our support and maintenance arrangements for our EV-DO products are typically renewable for one-year periods. We invoice our support and maintenance fees in advance of the applicable maintenance period, and we recognize revenue from maintenance and support services ratably over the term of the applicable maintenance and support period as services are delivered.
     We also offer professional services such as deployment optimization, network engineering and radio frequency deployment planning, and provide training for network planners and engineers. We generally recognize revenue for these services as the services are performed.
Product and Service Billings
     Product and service billings, which is a non-GAAP measure, represents the amount invoiced for products and services that are delivered and services that are to be delivered to our end customers directly or through our OEM channels for which we expect payment will be made in accordance with normal payment terms. Software-only product sales under our OEM agreements are invoiced monthly upon notification of sale by the OEM customer. We present the product and service billings metric because we believe it provides a consistent basis for understanding our sales activity and our OEM channel sales from period to period. We use product and service billings as a measure to assess our business performance and as a key factor in our incentive compensation program.
     Wireless operators generally purchase communications equipment in stages — driven first by coverage and later by capacity. The initial stage involves deploying new services in selected parts of their networks, often those geographic regions with the highest concentration of customers. Wireless operators then typically expand coverage throughout their network. Later purchases are driven by a desire to expand capacity as the usage of new services grows. Initial purchases usually occur around the time that we and our OEM customers offer products that substantially improve the performance of the network. Subsequent purchases to expand the geographic coverage and capacity of an operator’s wireless network are difficult to predict because they are typically related to consumer demand for mobile broadband services. As a result, our product and service billings have fluctuated significantly from period to period and we expect them to continue to fluctuate significantly from period to period for the foreseeable future.
     Our product and service billings were $26.3 million and $64.1 million in the three and six month periods ended June 29, 2008, respectively. Product and service billings to Nortel Networks were 92% of billings and 96% of billings in the three and six month periods ended June 29, 2008.

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     The following table reconciles revenue to product and service billings:
                                 
    Three Months Ended     Six Months Ended  
    July 1, 2007     June 29, 2008     July 1, 2007     June 29, 2008  
Revenue
  $ 156,256     $ 59,019     $ 156,525     $ 66,657  
Less: deferred revenue acquired
    (171 )           (171 )      
Deferred revenue, at end of period
    165,088       77,396       165,088       77,396  
Less: deferred revenue, at beginning of period
    (284,624 )     (110,136 )     (243,418 )     (79,978 )
 
                       
Product and service billings
  $ 36,549     $ 26,279     $ 78,024     $ 64,075  
 
                       
Deferred Revenue
     Product and service billings for invoiced shipments and software license fees, and related maintenance services for which revenue is not recognized in the current period are recorded as deferred revenue. Deferred revenue increases each fiscal period by the amount of product and service billings that are deferred in the period and decreases by the amount of revenue recognized in the period. We classify deferred revenue that we expect to recognize during the next twelve months as current deferred revenue on our balance sheet and the remainder as long-term deferred revenue. As of June 29, 2008, $76.4 million of deferred revenue is included in current liabilities and $1.0 million of deferred revenue is included in long-term liabilities.
Cost of Revenue
     Cost of product revenue consists primarily of:
    cost for channel card hardware provided by contract manufacturers;
 
    cost of hardware for our RNCs and network management systems;
 
    license fees for third-party software and other intellectual property used in our products; and
 
    other related overhead costs.
     Cost of service revenue consists primarily of salaries, benefits and stock-based compensation for employees that provide support services to customers and manage the supply chain. We expense all service-related costs as they are incurred.
     Qualcomm has recently indicated to us that we may owe them royalties of up to approximately $8 million for EV-DO products that we sold to Nortel Networks beginning in 2007. See Note 16 to the financial statements contained in Part 1, Item 1 above, “Related Party Transactions.” Although we believe we should not have to pay these royalties, if we are required to pay these royalties on past or future sales, our cost of product revenue will increase.
Cost Related to Product and Service Billings
     Cost related to product and service billings, which is a non-GAAP measure, includes the cost of products delivered and invoiced to our customers, the cost directly attributable to the sale of software-only products by our OEM partners and the cost of services in the current period. Cost related to product billings is recorded as deferred product cost until such time as the related deferred revenue is recognized as revenue upon the delivery of specified software upgrades. At the time of revenue recognition, we expense the related deferred product cost in our income statement as cost of revenue.
Deferred Product Cost
     Cost related to product billings for invoiced shipments and software-only license fees for which revenue is not recognized in the current period is recorded as deferred product cost. Deferred product cost increases each fiscal period by the amount of product cost associated with product billings that are deferred in the period and decreases

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by the amount of product cost associated with revenue recognized in the period. We classify deferred product cost that we expect to recognize during the next twelve months as current deferred product cost on our balance sheet and the remainder as long term deferred product cost. All $1.4 million of deferred product cost at June 29, 2008 is included in current assets.
Gross Profit
     Our gross profit represents revenue recognized during the period less related cost and is primarily attributable to OEM product shipments and software license fees. Our gross profit varies from period to period according to the mix of revenue from hardware products, software products and services.
Gross Profit on Billings
     Our gross profit on billings, a non-GAAP measure, represents product and service billings during the period less cost related to product and service billings and is primarily attributable to OEM product shipments and software license fees. Our gross profit on billings varies from period to period according to our mix of billings from hardware products, software products and services.
Operating Expenses
     Research and Development. Research and development expense consists primarily of:
    salaries, benefits and stock-based compensation related to our engineers;
 
    cost of prototypes and test equipment relating to the development of new products and the enhancement of existing products;
 
    payments to suppliers for design and consulting services; and
 
    other related overhead costs.
     We expense all research and development cost as it is incurred. Our research and development is performed by our engineering personnel in the United States, India and the United Kingdom. We intend to continue to invest significantly in our research and development efforts, which we believe are essential to maintaining our competitive position and the development of new products for new markets. Accordingly, we expect research and development expense to remain similar in amount for the remaining quarters of fiscal 2008.
     Sales and Marketing. Sales and marketing expense consists primarily of:
    salaries, benefits and stock-based compensation related to our sales, marketing and customer support personnel;
 
    commissions payable to our sales personnel;
 
    travel, lodging and other out-of-pocket expenses;
 
    marketing program expenses; and
 
    other related overhead costs.
     We expense sales commissions at the time they are earned, which typically is when the associated product and service billings are recorded or when a customer agreement is executed. We expect sales and marketing expense to increase in amount and as a percentage of product and service billings for the foreseeable future as we continue to augment our sales and marketing functions, primarily outside the United States.
     General and Administrative. General and administrative expense consists primarily of:
    salaries, benefits and stock-based compensation related to our executive, finance, legal, human resource and administrative personnel;

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    professional services costs; and
 
    other related overhead costs.
     We expect general and administrative expense to increase in amount and as a percentage of product and service billings during the remainder of 2008 as we invest in infrastructure to support continued growth and incur additional expenses related to being a publicly-traded company, including additional audit and legal fees, costs of compliance with the Sarbanes-Oxley Act of 2002, disclosure obligations and other regulations, investor relations expense and insurance premiums.
Stock-Based Compensation Expense
     We adopted the requirements of SFAS No. 123(R) in the first quarter of fiscal 2006. SFAS No. 123(R) addresses all forms of shared-based payment awards, including shares issued under employee stock purchase plans, stock options, restricted stock and stock appreciation rights. SFAS No. 123(R) requires us to expense share-based payment awards with compensation cost for share-based payment transactions measured at fair value. We currently expect that our adoption of SFAS No. 123(R) will continue to adversely affect our operating results to some extent in future periods.
     Based on current stock option grants, we expect to recognize a future expense for non-vested options of $17.2 million over a weighted-average period of 3.0 years as of June 29, 2008. We expect stock-based compensation expense will increase for the foreseeable future as we expect to continue to grant stock-based incentives to our employees.
Operating Income on Billings
     Operating income on billings, which is a non-GAAP measure, varies from period to period according to the amount of gross profit on billings less operating expenses for the period.
Interest Income, Net
     Interest income, net, primarily relates to interest earned on our cash, cash equivalents and investments. In the second quarter of fiscal 2008, interest income was partially offset by interest expense from our outstanding debt.
Income Taxes
     We recorded tax expense of approximately 38% in the second quarter of 2008. We expect our tax rate to be volatile from quarter to quarter, depending on the timing of revenue recognition and the mix of profits and losses in the U.S. and foreign tax jurisdictions. Our current forecasted tax rate for the full year is approximately 46% to 48%, which excludes any benefit from any research and development (“R&D”) tax credit, as the R&D tax credit has not yet been renewed for 2008 by Congress. If the R&D tax credit is renewed in 2008 on a retroactive basis to the beginning of the year, we would expect our full year tax rate to be between 38% and 40% for fiscal year 2008.
Cash Flow from Operating Activities
     Customer collections and, consequently, cash flow from operating activities, are driven by sales transactions and related product and service billings, rather than recognized revenues. We believe cash flow from operating activities is a useful measure of the performance of our business because, in contrast to income statement profitability metrics that rely principally on revenue, cash flow from operating activities captures the contribution of changes in deferred revenue and deferred charges. We present cash flow from operating activities because it is a metric that management uses to track business performance and, as such, is a key factor in our incentive compensation program. In addition, management believes this metric is frequently used by securities analysts, investors and other interested parties in the evaluation of software companies with significant deferred revenue balances.
Cash and Investments
     We had unrestricted cash and cash equivalents and investments totaling $222.0 million as of December 30, 2007 and $227.5 million as of June 29, 2008. Our existing cash and cash equivalents and investments are invested primarily in money market funds, high grade government sponsored enterprises (AAA/A1+), high-grade

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commercial paper (A1+/P1), and high grade corporate notes (A1/A+). We also hold investments in AAA rated credit card asset backed securities, which have expected maturities of less than two years, actively traded and highly liquid. However, we do not invest in any other types of asset backed securities such as those backed by mortgages or auto loans. None of our investments have incurred defaults or have been downgraded. We do not hold auction rate securities. We hold unrestricted cash and cash equivalents for working capital purposes. We do not enter into investments for trading or speculative purposes. We maintain investments in accordance with our investment policy. The primary objectives of our investment activities are to preserve principal, maintain proper liquidity to meet operating needs, maximize yields and maintain proper fiduciary control over our investments.
Fiscal Year
     Our fiscal year ends on the Sunday closest to December 31. Our fiscal quarters end on the Sunday that falls closest to the last day of the third calendar month of the quarter.
Critical Accounting Policies and Estimates
     This management’s discussion and analysis of financial condition and results of operations is based on our financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, management evaluates its estimates and judgments, including those related to revenue recognition. Management bases its estimates and judgments on historical experience and on various other factors that it believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.
     We regard an accounting estimate or assumption underlying our financial statements as a “critical accounting estimate” where (i) the nature of the estimate or assumption is material due to the level of subjectivity and judgment necessary to account for highly uncertain matters or the susceptibility of such matters to change; and (ii) the impact of the estimates and assumptions on financial condition or operating performance is material.
Revenue Recognition
     We derive revenue from the licensing of software products and software upgrades; the sale of hardware products, maintenance and support services; and the sale of professional services, including training. Our products incorporate software that is more than incidental to the related hardware. Accordingly, we recognize revenue in accordance with SOP No. 97-2, Software Revenue Recognition.
     Under multiple-element arrangements where several different products or services are sold together, we allocate revenue to each element based on VSOE of fair value. We use the residual method when fair value does not exist for one or more of the delivered elements in a multiple-element arrangement. Under the residual method, the fair value of the undelivered elements are deferred and subsequently recognized when earned. For a delivered item to be considered a separate element, the undelivered items must not be essential to the functionality of the delivered item and there must be VSOE of fair value for the undelivered items in the arrangement. Fair value is generally limited to the price charged when we sell the same or similar element separately or, when applicable, the stated substantive renewal rate. If evidence of the fair value of one or more undelivered elements does not exist, all revenue is deferred and recognized after delivery of those elements occurs or when fair value can be established. For example, in situations where we sell a product during a period when we have a commitment for the delivery or sale of a future specified software upgrade, we defer revenue recognition until the specified software upgrade is delivered.
     Significant judgments in applying the accounting rules and regulations to our business practices principally relate to the timing and amount of revenue recognition given our current concentration of revenues with one customer and our inability to establish VSOE of fair value for specified software upgrades.
     We sell our products primarily through OEM arrangements with telecommunications infrastructure vendors such as Nortel Networks. We have collaborated with our OEM customers on a best efforts basis to develop initial product features and subsequent enhancements for the products that are sold by a particular OEM to its wireless operator

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customers. For each OEM customer, we expect to continue to develop products based on our core technology that are configured for the requirements of the OEM’s base stations and its operator customers.
     This business practice is common in the telecommunications equipment industry and is necessitated by the long planning cycles associated with wireless network deployments coupled with rapid changes in technology. Large and complex wireless networks support tens of millions of subscribers and it is critical that any changes or upgrades be planned well in advance to ensure that there are no service disruptions. The evolution of our infrastructure technology therefore must be planned, implemented and integrated with the wireless operators’ plans for deploying new applications and services and any equipment or technology provided by other vendors.
     Given the nature of our business, the majority of our sales are generated through multiple-element arrangements comprised of a combination of product, maintenance and support services and, importantly, specified product upgrades. We have established a business practice of negotiating with OEMs the pricing for future purchases of new product releases and specified software upgrades. We expect that we will release one or more optional specified upgrades annually. To determine whether these optional future purchases are elements of current purchase transactions, we assess whether such new products or specified upgrades will be offered to the OEM customer at a price that represents a significant and incremental discount to current purchases. Because we sell uniquely configured products through each OEM customer, we do not maintain a list price for our products and specified software upgrades. Additionally, as we do not sell these products and upgrades to more than one customer, we are unable to establish VSOE of fair value for these products and upgrades. Consequently, we are unable to determine if the license fees we charge for the optional specified upgrades include a significant and incremental discount. As such, we defer all revenue related to current product sales, software-only license fees, maintenance and support services and professional services until all specified upgrades committed at the time of shipment have been delivered. For example, we recognize deferred revenue from sales to an OEM customer only after we deliver a specified upgrade that we had previously committed. However, when we commit to an additional upgrade before we have delivered a previously committed upgrade, we defer all revenue from product sales after the date of such commitment until we deliver the additional upgrade. Any revenue that we have deferred prior to the additional commitment is recognized after the previously committed upgrade is delivered.
     If there are no commitments outstanding for specified upgrades, we recognize revenue when all of the following have occurred: (1) delivery (FOB origin), provided that there are no uncertainties regarding customer acceptance; (2) there is persuasive evidence of an arrangement; (3) the fee is fixed or determinable; and (4) collection of the related receivable is reasonably assured, as long as all other revenue recognition criteria have been met. If there are uncertainties regarding customer acceptance, we recognize revenue and related cost of revenue when those uncertainties are resolved. Any adjustments to software license fees are recognized when reported to us by an OEM customer.
     For our direct sales to end user customers, which have not been material to date, we recognize product revenue upon delivery, provided that all other revenue recognition criteria have been met.
     Our support and maintenance services consist of the repair or replacement of defective hardware, around-the-clock help desk support, technical support and the correction of bugs in our software. Our annual support and maintenance fees are based on a fixed dollar amount associated with, or a percentage of the initial sales price for, the applicable hardware and software products. Included in the price of the product, we provide maintenance and support during the product warranty period, which is two years for base station channel cards and one year for software products.
     When VSOE of fair value for maintenance and support services exists, we allocate a portion of the initial product revenue to the maintenance and support services provided during the warranty period based on the fees we charge for annual support and maintenance when sold separately. This revenue is also deferred with the associated product revenue until such time as all outstanding specified software upgrades at the time of shipment are delivered, at which time the earned support and maintenance revenue is recognized and the unearned support and maintenance revenue is recognized over the remainder the applicable warranty period.
     When VSOE of fair value or maintenance and support services does not exist, all revenue is deferred and recognized ratably over the warranty period. If there are outstanding specified upgrades at the time of shipment, revenue is deferred until such time as all such upgrades outstanding at the time of shipment are delivered. At the time of the delivery of all such upgrades, we will recognize a proportionate amount of revenue related to the amount of the warranty period that has lapsed at the date of delivery, and the unearned revenue will be recognized over the remainder of the applicable warranty period. In connection with an amendment to the our OEM arrangement with Nortel Networks dated September 28, 2007, we can no longer assert VSOE of fair value for maintenance and support services to Nortel Networks. Although unable to establish VSOE of fair value of maintenance and support services under SOP No. 97-2 for revenue recognition purposes, we present product and service revenue separately on our consolidated statements of operations by applying the maintenance and support services renewal rates in effect at the time of sale.

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     For maintenance and service renewals, we recognize revenue for such services ratably over the service period as services are delivered.
     We provide professional services for deployment optimization, network engineering and radio frequency deployment planning, and provides training for network planners and engineers. We generally recognize revenue for these services as the services are performed as we have deemed such services not essential to the functionality of our products.
     We have not issued any refunds on products sold. As such, no provisions have been recorded against revenue or related receivables for potential refunds.
Stock-Based Compensation
     Through the year ended January 1, 2006, we accounted for our stock-based awards to employees using the intrinsic value method prescribed in Accounting Principles Board, or APB, Opinion No. 25, Accounting for Stock Issued to Employees, and elected the disclosure-only requirements of SFAS No. 123, Accounting for Stock-Based Compensation and SFAS No. 148, Accounting for Stock-Based Compensation Transition and Disclosure an Amendment of FASB Statement No. 123. Under the intrinsic value method, compensation expense is measured on the date of the grant as the difference between the deemed fair value of our common stock and the exercise or purchase price multiplied by the number of stock options or restricted stock awards granted. We followed the provisions of Emerging Issues Task Force, or EITF, No. 96-18, Accounting for Equity Instruments that are Issued to Other than Employees for Acquiring, or in Conjunction with Selling, Goods and Services, to account for grants made to non-employees.
     In December 2004, the FASB issued SFAS No. 123 (revised 2004), Share-Based Payment, or SFAS No. 123(R), which is a revision of SFAS No. 123. SFAS No. 123(R) requires all share-based payments to employees, including grants of employee stock options, to be recognized in the income statement based on their estimated fair values. In accordance with SFAS No. 123(R), we recognize the compensation cost of share-based awards on a straight-line basis over the vesting period of the award, which is generally four to five years, and have elected to use the Black-Scholes option pricing model to determine fair value. SFAS No. 123(R) eliminated the alternative of applying the intrinsic value method of APB Opinion No. 25 to stock compensation awards. We adopted the provisions of SFAS No. 123(R) on the first day of fiscal 2006 using the prospective-transition method. As such, we will continue to apply APB No. 25 in future periods to equity awards granted prior to the adoption of SFAS No. 123(R).
     As there was no public market for our common stock prior to July 19, 2007, the date of our IPO, we determined the volatility percentage used in calculating the fair value of stock options we granted based on an analysis of the historical stock price data for a peer group of companies that issued options with substantially similar terms. The weighted-average expected volatility percentage used in determining the fair value of stock options granted in the six months ended July 1, 2007 was 78% and for the six months ended June 29, 2008 was 57%. The expected life of options has been determined utilizing the “simplified” method as prescribed by the SEC’s Staff Accounting Bulletin No. 107, Share-Based Payments and SFAS 123(R). The expected life of options granted during the six months ended July 1, 2007 was 6.5 years and for the six months ended June 29, 2008 was 6.25 years. The weighted-average risk free interest rate used for the six months ended July 1, 2007, was 4.65% and for the six months ended March 30, 2008 was 3.20%. The risk-free interest rate is based on a 7-year treasury instrument whose term is consistent with the expected life of the stock options. Although we paid a one-time special cash dividend in April 2007, the expected dividend yield is assumed to be zero as we do not currently anticipate paying cash dividends on our shares of common stock in the future. In addition, SFAS No. 123(R) requires companies to utilize an estimated forfeiture rate when calculating the expense for the period, whereas SFAS No. 123 permitted companies to record forfeitures based on actual forfeitures, which was our historical policy under SFAS No. 123. As a result, we applied estimated forfeiture rates of 3.0% for the six months ended June 29, 2007 and 4.0% for the six months ended July 1, 2008 in

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determining the expense recorded in our consolidated statement of operations. These rates were derived by review of our historical forfeitures since 2000.
Income Taxes
     We are subject to income taxes in both the United States and foreign jurisdictions, and we use estimates in determining our provision for income taxes. We account for income taxes under the provisions of SFAS No. 109, Accounting for Income Taxes, which requires the recognition of deferred income tax assets and liabilities for expected future tax consequences of events that have been recognized in our financial statements or tax returns. Under SFAS No. 109, we determine the deferred tax assets and liabilities based upon the difference between the financial statements and the tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. We must then periodically assess the likelihood that our deferred tax assets will be recovered from our future taxable income, and, to the extent we believe that it is more likely than not our deferred tax assets will not be recovered, we must establish a valuation allowance against our deferred tax assets.
     In July 2006, the FASB issued FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes, or FIN No. 48, which is an interpretation of SFAS No. 109. FIN No. 48 creates a single model to address uncertainty in tax positions and clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements in accordance with SFAS No. 109 by prescribing the minimum threshold a tax position is required to meet before being recognized in an enterprise’s financial statements. FIN No. 48 is effective for fiscal years beginning after December 15, 2006 but earlier application is encouraged. Differences between the amounts recognized in the statement of financial position prior to adoption of FIN No. 48 and the amounts reported after adoption should be accounted for as a cumulative-effect adjustment recorded to the beginning balance of retained earnings. We adopted the provisions of FIN No. 48 effective January 1, 2007. We did not recognize any liability for unrecognized tax benefits as a result of adopting FIN No. 48 as of January 1, 2007 and for the six months ended July 1, 2007. We recognized $37 thousand in unrecognized tax benefits during the six months ended June 29, 2008 and had a balance of $4.7 million at June 29, 2008. We recognized $94 thousand of interest related to unrecognized tax benefits in the six months ended June 29, 2008.
Results of Operations
Comparison of Three Months Ended July 1, 2007 and June 29, 2008
Revenue and Product and Service Billings
                         
    Three Months Ended     Period-to-Period  
    July 1, 2007     June 29, 2008     Change  
    (dollars in thousands)  
Revenue
  $ 156,256     $ 59,019     $ (97,237 )
Less: deferred revenue acquired
    (171 )              
Deferred revenue, end of period
    165,088       77,396          
Less: deferred revenue, beginning of period
    (284,624 )     (110,136 )        
 
                   
Product and service billings
  $ 36,549     $ 26,279     $ (10,270 )
 
                   
     Our revenue for the second quarter of fiscal 2008 was derived principally from the ratable recognition of $55.5 million of software license and maintenance revenues deferred from June 2007 through December 2007 based on the delivery of our June 2007 specified upgrade to Nortel Networks in the second quarter of 2008. As we are no longer able to assert VSOE of fair value on our maintenance services provided to Nortel, we recognize Nortel-related software license and maintenance revenues ratably over the warranty period beginning upon delivery of the specified upgrade outstanding at time of shipment. Our revenue for the second quarter of fiscal 2008 also consists of maintenance and support renewal services performed during the quarter as well as other product and service revenue. The revenue recognized in the second quarter of fiscal 2007 principally consisted of product shipments and sales of software licenses, maintenance and support that was billed and deferred from April 2005 through August 2006. We recognized this revenue as a result of the delivery of a specified upgrade in April 2007.
     The decline in our product and service billings for the second quarter of fiscal 2008, as compared to the second quarter of fiscal 2007 was due primarily to higher billings in 2007 related to initial operator rollouts of Rev A

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upgradeable channel cards. We expect billings to increase sequentially and year-over-year in both the third and fourth quarters of 2008 as operators deploy additional capacity in their networks.
Cost of Revenue and Cost Related to Product and Service Billings
                         
    Three Months Ended     Period-to-Period  
    July 1, 2007     June 29, 2008     Change  
    (dollars in thousands)  
Cost of revenue
  $ 35,770     $ 3,327     $ (32,443 )
Deferred product cost, end of period
    701       1,354          
Less: deferred product cost, beginning of period
    (34,373 )     (1,651 )        
 
                   
Cost related to product billings
  $ 2,098     $ 3,030     $ 932  
 
                   
     The decrease in cost of revenue was primarily due to the transition of manufacturing for Rev A channel cards to Nortel Networks in fiscal 2006 as cost of revenue in 2007 included hardware costs for channel cards shipped during 2006.
     The increase in cost related to product and service billings was due primarily to deferred costs associated with initial sales of prototype units of our FMC products.
Gross Profit and Gross Profit on Billings
                         
    Three Months Ended     Period-to-Period  
    July 1, 2007     June 29, 2008     Change  
    (In thousands)  
Gross profit
  $ 120,486     $ 55,692     $ (64,794 )
Less: deferred revenue acquired
    (171 )              
Deferred revenue, at end of period
    165,088       77,396          
Less: Deferred revenue, at beginning of period
    (284,624 )     (110,136 )        
Deferred product cost, at beginning of period
    34,373       1,651          
Less: Deferred product cost, at end of period
    (701 )     (1,354 )        
 
                   
Gross profit on Billings
  $ 34,451     $ 23,249     $ (11,202 )
 
                   
     The decrease in gross profit was due primarily to a decrease in revenue of $97.2 million from $156.3 million in the first quarter of fiscal 2007 to $59.1 million in the second quarter of fiscal 2008, offset by a decrease in cost of revenue of $32.4 million from $35.8 million in the second quarter of fiscal 2007 to $3.3 million in the second quarter of fiscal 2008. We expect gross profit on our revenue to continue to fluctuate significantly in the future based on the time period between commitments for future software upgrades and the volume of sales in those time intervals, and the mix of business between hardware products, software products and services.
     Gross profit on Billings decreased primarily due to a decrease in product and service billings of $10.3 million from $36.5 million in the second quarter of fiscal 2007 to $26.3 million in the second quarter of fiscal 2008 as well as an increase in cost related to product billings of $0.9 million from $2.1 million in the second quarter of fiscal 2007 to $3.0 million in the second quarter of fiscal 2008.
Operating Expenses
                                 
                    Period-to-Period  
    Three Months Ended     Change  
    July 1, 2007     June 29, 2008     Amount     Percentage  
    (dollars in thousands)  
Research and development
  $ 18,598     $ 18,091     $ (507 )     (2.7 %)
Sales and marketing
    3,182       3,825       643       20.2 %
General and administrative
    1,721       2,321       600       34.9 %
In-process research and development
    2,340             (2,340 )        
 
                         
Total operating expenses
  $ 25,841     $ 24,237     $ (1,604 )     (6.2 %)
 
                         
     Research and Development. The decrease in research and development expense was due primarily to a decrease in outside services expense resulting from non-recurring costs incurred in the second quarter of fiscal 2007

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associated with our research and development activities partially offset by an increase in salary and benefit expense associated with annual pay rate increases. Outside services expense decreased by $1.0 million to $0.3 million in the second quarter of fiscal 2008 from $1.3 million in the second quarter of fiscal 2007. Salary and benefit expense increased by $0.4 million to $13.1 million in the second quarter of fiscal 2008 from $12.7 million in the second quarter of fiscal 2007.
     Sales and Marketing. The increase in sales and marketing expense was primarily due to an increase in salary and benefit expense associated with an increase in the number of sales, marketing and customer service employees to expand our international presence and support our new FMC product lines, which we plan to sell to a larger base of OEMs and operators than our EV-DO products. Salary and benefit expense associated with the increase in headcount increased by $0.5 million to $3.0 million in the second quarter of fiscal 2008 from $2.5 million in the second quarter of fiscal 2007.
     General and Administrative. The increase in general and administrative expense was due to an increase in the number of general and administrative employees to support our growth as well as an increase in corporate insurance, outside services expense and other costs associated with being a public company. Salary and benefit expense associated with the increase in headcount increased by $0.1 million to $1.1 million in the second quarter of fiscal 2008 from $1.0 million in the second quarter of fiscal 2007. Corporate insurance increased $0.2 million to $0.3 million in the second quarter of fiscal 2008 from $0.1 million in the second quarter of fiscal 2007. Outside services expense increased $0.2 million to $0.3 million in the second quarter of fiscal 2008 from $0.1 million in the second quarter of fiscal 2007.
Operating Profit and Operating Profit (Loss) on Billings
                         
    Three Months Ended     Period-to-Period  
    July 1, 2007     June 29, 2008     Change  
    (In thousands)  
Operating profit
  $ 94,645     $ 31,455     $ (63,190 )
Less: deferred revenue acquired
    (171 )              
Deferred revenue, at end of period
    165,088       77,396          
Less: Deferred revenue, at beginning of period
    (284,624 )     (110,136 )        
Deferred product cost, at beginning of period
    34,373       1,651          
Less: Deferred product cost, at end of period
    (701 )     (1,354 )        
 
                   
Operating profit (loss) on billings
  $ 8,610     $ (988 )   $ (9,598 )
 
                   
     The decrease in operating profit was due primarily to the decrease in our gross profit, described above, partially offset by the decrease in our operating expenses, described above.
     The decrease in operating profit on Billings was due to the decrease in our Gross Profit on Billings, described above, partially offset by the decrease in our operating expenses, described above.
     Interest Income, Net. Interest income, net, consists of interest generated from the investment of our cash balances. The decrease in interest income from $1.9 million in the second quarter of fiscal 2007 to $1.8 million in the second quarter of fiscal 2008 was due primarily to lower interest rates and returns on investments partially offset by higher average cash balances.
     Income Taxes. We recognized a tax expense of $12.7 million in the second quarter of fiscal 2008 primarily related to profits in the United States taxed at the federal and state statutory tax rate and the effect of losses from foreign operations for which no tax benefit can currently be recognized.
Comparison of Six Months Ended July 1, 2007 and June 29, 2008
Revenue and Product and Service Billings

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    Six Months Ended     Period-to-Period  
    July 1, 2007     June 29, 2008     Change  
    (dollars in thousands)  
Revenue
  $ 156,525     $ 66,657     $ (89,868 )
Less: deferred revenue acquired
    (171 )              
Deferred revenue, end of period
    165,088       77,396          
Less: deferred revenue, beginning of period
    (243,418 )     (79,978 )        
 
                   
Product and service billings
  $ 78,024     $ 64,075     $ (13,949 )
 
                   
     Our revenue for the first half of fiscal 2008 was derived principally from the ratable recognition of $55.5 million of software license and maintenance revenues related to the delivery of our June 2007 specified upgrade to Nortel Networks in the second quarter of 2008. As we are no longer able to assert VSOE of fair value on our maintenance services provided to Nortel, we recognize Nortel-related software license and maintenance revenues ratably over the warranty period beginning upon delivery of the specified upgrade outstanding at time of shipment. Our revenue for the first half of fiscal 2008 also consists of the ratable recognition of $6.2 million of software license and maintenance revenues related to the delivery of our September 2006 specified upgrade to Nortel Networks in the fourth quarter of 2007 over the warranty period. Our revenue for the first half of fiscal 2008 also consists of maintenance and support renewal services performed during the first half of fiscal 2008 as well as other product and service revenue. The revenue recognized in the first half of fiscal 2007 principally consisted of product shipments and sales of software licenses, maintenance and support that was billed and deferred from April 2005 through August 2006. We recognized this revenue as a result of the delivery of a specified upgrade in April 2007.
     The decline in our product and service billings for the first half of fiscal 2008, as compared to the first half of fiscal 2007 was due primarily to higher billings in 2007 related to initial operator rollouts of Rev A upgradeable channel cards. We expect billings to increase sequentially and year-over-year in both the third and fourth quarters of 2008 as operators deploy additional capacity in their networks.
Cost of Revenue and Cost Related to Product and Service Billings
                         
    Six Months Ended     Period-to-Period  
    July 1, 2007     June 29, 2008     Change  
    (dollars in thousands)  
Cost of revenue
  $ 37,453     $ 5,240     $ (32,213 )
Deferred product cost, end of period
    701       1,354          
Less: deferred product cost, beginning of period
    (34,214 )     (1,050 )        
 
                   
Cost related to product billings
  $ 3,940     $ 5,544     $ 1,604  
 
                   
     The decrease in cost revenue was primarily due to the transition of manufacturing for Rev A channel cards to Nortel Networks in fiscal 2006 as cost of revenue in 2007 included hardware costs for channel cards shipped during 2006.
     The increase in cost related to product and service billings was due primarily to deferred costs associated with initial sales of prototype units of our FMC products.
Gross Profit and Gross Profit on Billings
                         
    Six Months Ended     Period-to-Period  
    July 1, 2007     June 29, 2008     Change  
    (In thousands)  
Gross profit
  $ 119,072     $ 61,417     $ (57,655 )
Less: deferred revenue acquired
    (171 )              
Deferred revenue, at end of period
    165,088       77,396          
Less: Deferred revenue, at beginning of period
    (243,418 )     (79,978 )        
Deferred product cost, at beginning of period
    34,214       1,050          
Less: Deferred product cost, at end of period
    (701 )     (1,354 )        
 
                   
Gross profit on Billings
  $ 74,084     $ 58,531     $ (15,553 )
 
                   
     The decrease in gross profit was due primarily to a decrease in revenue of $89.9 million to $66.7 million in the first half of fiscal 2008 from $156.5 million in the first half of fiscal 2007, offset by a decrease in cost of revenue of $32.2 million to $5.2 million in the first half of fiscal 2008 from $37.4 million in the first half of fiscal 2007. We expect gross profit on our revenue to continue to fluctuate significantly in the future based on the time period

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between commitments for future software upgrades and the volume of sales in those time intervals, and the mix of business between hardware products, software products and services.
     Gross profit on Billings decreased primarily due to a decrease in product and service billings of $13.9 million to $64.1 million in the second quarter of fiscal 2008 from $78.0 million in the second quarter of fiscal 2007 as well as an increase in cost related to product billings of $1.6 million to $5.5 million in the second quarter of fiscal 2008 from $3.9 million in the second quarter of fiscal 2007.
Operating Expenses
                                 
                    Period-to-Period  
    Six Months Ended     Change  
    July 1, 2007     June 29, 2008     Amount     Percentage  
    (dollars in thousands)  
Research and development
  $ 34,581     $ 37,350     $ 2,769       8.0 %
Sales and marketing
    5,762       7,403       1,641       28.5 %
General and administrative
    3,237       4,394       1,157       35.7 %
In-process research and development
    2,340             (2,340 )        
 
                         
Total operating expenses
  $ 45,920     $ 49,147     $ 3,227       7.0 %
 
                         
     Research and Development. The increase in research and development expense was due primarily to an increase in the average number of research and development employees in our Chelmsford, Massachusetts, Bangalore, India and Cambridge, United Kingdom facilities to support the development of our new FMC product lines and to expand our EV-DO business as well as annual pay rate increases. Salary and benefit expense associated with the increase in average headcount and annual pay rate increases increased by $2.6 million to $26.7 million in the first half of fiscal 2008 from $24.1 million in the first half of fiscal 2007.
     Sales and Marketing. The increase in sales and marketing expense was primarily due to an increase in salary and benefit expense associated with an increase in the number of sales, marketing and customer service employees to expand our international presence and support our new FMC product lines, which we expect to sell to a larger base of OEMs and operators than our EV-DO products. Salary and benefit expense associated with the increase in headcount increased by $1.1 million to $5.9 million in the first half of fiscal 2008 from $4.8 million in the first half of fiscal 2007.
     General and Administrative. The increase in general and administrative expense was due to an increase in the number of general and administrative employees to support our growth as well as an increase in corporate insurance and other costs associated with being a public company. Salary and benefit expense associated with the increase in headcount increased by $0.3 million to $2.1 million in the first half of fiscal 2008 from $1.8 million in the first half of fiscal 2007. Corporate insurance increased $0.4 million to $0.5 million in the first half of fiscal 2008 from $0.1 million in the first half of fiscal 2007.
Operating Profit and Operating Profit on Billings
                         
    Six Months Ended     Period-to-Period  
    July 1, 2007     June 29, 2008     Change  
    (In thousands)  
Operating profit
  $ 73,152     $ 12,270     $ (60,882 )
Less: deferred revenue acquired
    (171 )              
Deferred revenue, at end of period
    165,088       77,396          
Less: Deferred revenue, at beginning of period
    (243,418 )     (79,978 )        
Deferred product cost, at beginning of period
    34,214       1,050          
Less: Deferred product cost, at end of period
    (701 )     (1,354 )        
 
                   
Operating profit on billings
  $ 28,164     $ 9,384     $ (18,780 )
 
                   
     The decrease in operating profit was due primarily to the decrease in our gross profit, described above, coupled with the increase in our operating expenses, described above.

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     The decrease in operating profit on Billings was due to the decrease in our Gross Profit on Billings, described above, coupled with the increase in our operating expenses, described above.
     Interest Income, Net. Interest income, net, consists of interest generated from the investment of our cash balances. The decrease in interest income of $0.2 million from $4.6 million in the first half of fiscal 2007 to $4.4 million in the first half of fiscal 2008 was due primarily to lower interest rates and returns on investments partially offset by higher average cash balances.
     Income Taxes. We recognized a tax expense of $7.8 million in the first half of fiscal 2008 primarily related to profits in the United States taxed at the federal and state statutory tax rate and the effect of losses from foreign operations for which no tax benefit can be recognized.
Liquidity and Capital Resources
     As of June 29, 2008, our principal sources of liquidity were cash, cash equivalents and investments of $227.5 million. Our existing cash and cash equivalents and investments are invested primarily in money market funds, high grade government sponsored enterprises (AAA/A1+), high grade (A1+/P1) commercial paper and high grade (A1/A+) corporate notes. We also hold investments in AAA rated credit card asset backed securities, which have expected maturities of less than two years, actively traded and highly liquid. However, we do not invest in any other types of asset backed securities such as those backed by mortgages or auto loans. None of our investments have incurred defaults or have been downgraded. We do not hold auction rate securities. We hold unrestricted cash and cash equivalents for working capital purposes. We do not enter into investments for trading or speculative purposes. We maintain investments in accordance with our investment policy. The primary objectives of our investment activities are to preserve principal, maintain proper liquidity to meet operating needs, maximize yields and maintain proper fiduciary control over our investments.
     In July 2008, our board of directors approved a share repurchase program authorizing us to purchase up to $20 million of our common stock over the next 12 months. The share repurchase program terminates on July 29, 2009 or earlier if the Company so elects. The purchases of common stock will be executed periodically on the open market under a Rule 10b5-1 plan as market and business conditions warrant. The Company plans to enter into the Rule 10b5-1 plan in August 2008. As of August 5, 2008, the Company has not repurchased any shares under this program.
     As of June 29, 2008, we did not have any lines of credit or other similar source of liquidity, other than capital leases of approximately $9,000.
                 
         (in thousands)
    As of   As of
    December 30,   June 29,
    2007   2008
Cash and cash equivalents
  $ 43,547     $ 35,312  
Investments, short-term
    178,416       189,111  
Investments, long-term
          3,068  
Accounts receivable, net
    14,171       7,941  
Working capital
    131,886       144,676  
                 
    (in thousands)
    Six Months   Six Months
    Ended   Ended
    July 1,   June 29,
    2007   2008
Cash flow from operating activities
  $ 63,882     $ 1,239  
Cash flow from investing activities
    (53,469 )     (12,367 )
Cash flow from financing activities
    (74,063 )     2,821  
     During the first half of fiscal 2007 and fiscal 2008, we funded our operations primarily with cash flow from operating activities. Cash flow from operating activities is generally derived from net income, fluctuations of current assets and liabilities and to a lesser extent non-cash expenses.

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     In the first half of fiscal 2007, our net income of $67.3 million exceeded our $63.9 million in cash flow from operating activities by $3.4 million primarily as a result of a decrease in deferred revenue of $78.5 million associated with the delivery of a specified upgrade offset by billings in the first half of fiscal 2007, substantially offset by the net decrease in accounts receivable of $29.3 million associated with collection of billings made in the fourth quarter of fiscal 2006 and the net decrease in deferred cost of $33.5 million associated with the delivery of a specified upgrade, and an increase in accrued taxes of $8.4 million.
     In the first half of fiscal 2008, our net income of $8.9 million exceeded our $1.2 million in cash flow from operating activities by $7.7 million primarily as a result of accrued income tax payments of $15.6 million and an increase in our deferred tax benefit of $7.8 million. Our ability to generate cash flow from operations depends in large part on the volume of our product and service billings, our ability to collect accounts receivable, timing of tax payments, and the growth of our operating expenses.
     Cash flow from investing activities resulted primarily from the timing of purchases, maturities and sales of investments and purchases of property and equipment.
     Cash used in financing activities in the first half of fiscal 2007 consisted primarily of a dividend payment of $72.7 million in cash to holders of common stock and redeemable convertible preferred stock and costs associated with our IPO, which were partially offset by proceeds from exercise of stock options. Cash flow from financing activities in the first half of fiscal 2008 consisted primarily of proceeds from the exercise of stock options as well as the tax benefit associated with the exercise of stock options during the year.
     We believe our existing cash, cash equivalents and investments, together with our cash flows from operating activities will be sufficient to meet our anticipated cash needs for at least one operating cycle (12 months). Our future working capital requirements will depend on many factors, including the rate of our product and service billings growth, the introduction and market acceptance of new products, the expansion of our sales and marketing and research and development activities, and the timing of our revenue recognition and related income tax payments. To the extent that our cash, cash equivalents and investments and cash from operating activities are insufficient to fund our future activities, we may be required to raise additional funds through bank credit arrangements or public or private equity or debt financings. We also may need to raise additional funds in the event we determine in the future to effect one or more acquisitions of businesses, technologies or products. In the event we require additional cash resources, we may not be able to obtain bank credit arrangements or effect any equity or debt financing on terms acceptable to us or at all.
     In October 2004, the Company entered into a seven-year lease agreement for its headquarters facility. The Company is obligated to pay monthly rent through 2012.
     Future minimum commitments as of June 29, 2008, under all of the Company’s operating leases, are as follows:
         
Fiscal year:
       
Remainder of 2008
  $ 806  
2009
    1,510  
2010
    1,545  
2011
    1,552  
2012
    439  
Thereafter
    9  
 
     
 
  $ 5,861  
 
     

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Item 3. Quantitative and Qualitative Disclosures about Market Risk
Foreign Currency Exchange Risk
     Our operating expenses and cash flows are subject to fluctuations due to changes in foreign currency exchange rates, particularly changes in the British pound and Indian rupee, the currencies in which our operating obligations in Cambridge, United Kingdom and Bangalore, India, respectively, are paid. To date, we have not entered into any hedging contracts, although we may do so in the future. Fluctuations in currency exchange rates could affect our business in the future.
Interest Rate Sensitivity
     We had unrestricted cash and cash equivalents and investments totaling $222.0 million and $227.5 million at December 30, 2007 and June 29, 2008, respectively. Our existing cash and cash equivalents and investments are invested primarily in money market funds, high grade government sponsored entities, high grade (A1+/P1) commercial paper and high grade (A1/A+) corporate notes. We also hold investments in AAA rated credit card asset backed securities, which have expected maturities of less than two years, are actively traded and highly liquid. However, we do not invest in any other types of asset backed securities such as those backed by mortgages or auto loans. None of our investments have incurred defaults or have been downgraded. We do not hold auction rate securities. We hold unrestricted cash and cash equivalents for working capital purposes. We do not enter into investments for trading or speculative purposes. We maintain investments in accordance with our investment policy. The primary objectives of our investment activities are to preserve principal, maintain proper liquidity to meet operating needs, maximize yields and maintain proper fiduciary control over our investments.
     Although our investments are subject to credit risk, our investment policy specifies credit quality standards for our investments and limits the amount of credit exposure from any single issue, issuer or type of investments. We do not own derivative financial investment instruments in our investment portfolio. In the event of a hypothetical ten percent adverse movement in interest rates, our losses of future earnings and assets, fair value’s of risk sensitive financial instruments, as well as our loss of cash flows would be immaterial; however, actual effects might differ materially from the hypothetical analysis.
Item 4. Controls and Procedures
     Our management, with the participation of our chief executive officer and chief financial officer, evaluated the effectiveness of our disclosure controls and procedures as of June 29, 2008. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on the evaluation of our disclosure controls and procedures as of June 29, 2008, our chief executive officer and chief financial officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.
     No change in our internal control over financial reporting occurred during the fiscal quarter ended June 29, 2008 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION
Item 1A. Risk Factors
     Our business is subject to numerous risks. We caution you that the following important factors, among others, could cause our actual results to differ materially from those expressed in forward-looking statements made by us or on our behalf in filings with the SEC, press releases, communications with investors and oral statements. Any or all of our forward-looking statements in this Quarterly Report on Form 10-Q and in any other public statements we make may turn out to be wrong. They may be affected by inaccurate assumptions we might make or by known or unknown risks and uncertainties. Many factors mentioned in the discussion below will be important in determining future results. Consequently, no forward-looking statement can be guaranteed. Actual future results may vary materially from those anticipated in forward-looking statements. We undertake no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise. You are advised, however, to consult any further disclosure we make in our reports filed with the SEC.
Risks Relating to Our Business
We depend on a single OEM customer, Nortel Networks, for almost all of our revenue and billings, and a significant shortfall in sales to Nortel Networks would significantly harm our business and operating results.
     We derived almost all of our revenue and billings in each of the last several years from sales to a single OEM customer, Nortel Networks. Nortel Networks accounted for 98% of our revenue and 96% of our billings in the first half of fiscal 2008, 99% of our revenue and 98% of our billings in fiscal 2007, 95% of our revenue and 94% of our billings in fiscal 2006 and 16% of our revenue and 98% of our billings in fiscal 2005. Our contract with Nortel Networks can be terminated by Nortel Networks at any time and, in any event, does not contain commitments for future purchases of our products. The rate at which Nortel Networks purchases products from us depends on its success in selling to operators its own EV-DO infrastructure solutions that include our products. There can be no assurance that Nortel Networks will continue to devote and invest significant resources and capital to its wireless infrastructure business or that it will be successful in the future in such business. Nortel Networks might seek to develop internally, or acquire from a third party, alternative wireless solutions to those currently purchased from us. In addition, Nortel Networks may seek to develop an alternative solution by utilizing technology that has been developed by LG Electronics, with which Nortel Networks has a joint venture. Consolidation is common in the telecommunications industry. Should Nortel Networks merge its wireless infrastructure businesses with another telecommunications company, Nortel Networks could seek to deploy alternative solutions by utilizing technology that has been developed by the other company. We expect to derive a substantial majority of our revenue and billings in fiscal 2008 from Nortel Networks, and therefore any adverse change in our relationship with Nortel Networks, or a significant decline or shortfall in our sales to Nortel Networks, would significantly harm our business and operating results.
Because our OEM business model requires us to defer the recognition of most of our revenue from product sales until we deliver specified upgrades, our revenue in any period is not likely to be indicative of the level of our sales activity in that period.
     We recognize revenue from the sale of products under our OEM agreements only after we deliver specified upgrades to those products that were committed at the time of sale. The period of development of these upgrades can range from 12 to 24 months after the date of commitment. As a result, most of our revenue in any quarter typically reflects license fees under our OEM agreements for products delivered and invoiced to customers several quarters earlier. For these products, we generally record the amount of the invoice as deferred revenue and then begin to recognize such deferred revenue as revenue upon delivery of the committed software upgrades. As a result, our revenue is not likely to be indicative of the level of our sales activity in any period. Due to our OEM business model, we expect that, for the foreseeable future, any quarter in which we recognize a significant amount of deferred revenue as a result of our delivery of a previously committed upgrade will be followed by one or more quarters of insignificant revenue as we defer revenue while we develop additional upgrades. Investors may encounter difficulties in tracking the performance of our business because our revenue will not reflect the level of our billings in any period, and these difficulties could adversely affect the trading price of our common stock.

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Our revenue and billings growth may be constrained by our product concentration and lack of revenue diversification.
     Almost all of our revenue and billings to date have been derived from sales of our EV-DO products, and we expect EV-DO revenues to remain a major contributor to revenue for the foreseeable future. Continued market acceptance of these products is critical to our future success. The future demand for our EV-DO products depends, in large part, on the continued expansion of the EV-DO-based wireless networks currently deployed by operators and determinations by additional operators to deploy EV-DO-based wireless networks. Demand for our EV-DO products also depends on our ability to continue to develop and deliver on a timely basis product upgrades to enable operators to enhance the performance of their networks and implement new mobile broadband services. Any decline in demand for EV-DO products, or inability on our part to develop and deliver product upgrades that meet the needs of operators, would adversely affect our business and operating results.
A majority of our current products are based exclusively on the CDMA2000 air interface standard for wireless communications, and therefore any movement by existing or prospective operator customers to a different standard could impair our business and operating results.
     There are multiple competing air interface standards for wireless communications networks. A majority of our current products are based exclusively on the CDMA2000 air interface standard, which handles a majority of wireless subscribers in the United States. Other standards, such as GSM/UMTS, are currently the primary standards used by wireless operators in mobile networks worldwide. Our EV-DO products do not operate in networks using the GSM/UMTS standards.
     We believe there are a limited number of operators that have not already chosen the air interface standard to deploy in their 3G wireless networks. Our success will therefore depend, to a significant degree, on whether operators that have currently deployed CDMA2000-based networks expand and upgrade their networks and whether additional operators that have not yet deployed 3G networks select CDMA2000 as their standard. Our business will be harmed if operators currently utilizing the CDMA2000 standard transition their networks to a competing standard and we have not at that time developed and begun to offer competitive products that are compatible with that standard. Our business will also be harmed if operators that have currently deployed both CDMA and GSM/UMTS networks determine to focus more of their resources on their GSM/UMTS networks.
The introduction of fourth generation wireless technology could reduce spending on our EV-DO products and therefore harm our operating results.
     The standards for mobile broadband solutions are expected to evolve into a fourth generation of wireless standards, known as 4G. Wireless operators have announced plans to build networks based on the 4G standard. For example, Verizon Wireless has announced its intent to build a 4G network using the Long Term Evolution, or LTE, standard and Sprint Nextel has announced its intent to build a 4G network using WiMAX technology. The market for our existing EV-DO products is likely to decline if and when operators begin to delay expenditures for EV-DO products in anticipation of the availability of new 4G-based products. Our primary OEM customer, Nortel Networks, has publicly announced that it is developing 4G-based LTE and WiMAX products. We do not have an agreement to supply Nortel Networks with any 4G-based products. We believe that it is likely that Nortel Networks will choose to enter into partnerships for 4G-based products with one or more of our competitors or choose to develop these products internally.
     Our future success will depend on our ability to develop and market new products compatible with 4G standards and the acceptance of those products by operators. The development and introduction of these products will be time consuming and expensive, and we may not be able to correctly anticipate the market for 4G-compatible products and related business trends. Any inability to develop successfully 4G-based products could harm significantly our future business and operating results.

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Qualcomm recently indicated to us that we may owe royalties on EV-DO products that we sold beginning in 2007. If we are required to pay these royalties, our business and operating results would be harmed.
     Some of the technology that we incorporate into our EV-DO products and sell to Nortel Networks is licensed from Qualcomm. Historically, we utilized this technology under license agreements between our company and Qualcomm and between Nortel Networks and Qualcomm. Some of the royalties for this technology were paid to Qualcomm by Nortel Networks. Qualcomm recently undertook an audit of the royalties that were paid in respect of the EV-DO products that we sold between 2003 and 2007. In connection with the audit, Qualcomm indicated that, due to a change in its licensing arrangement with Nortel Networks, we may owe additional royalties of up to approximately $8 million to Qualcomm for products that we sold to Nortel Networks beginning in 2007. We believe that we should not be responsible for any such royalties to Qualcomm because, among other things, we had established a course of dealing with Qualcomm in which Nortel Networks paid the royalties for such licensed technology and we had not been notified of the modifications to Qualcomm’s licensing arrangement with Nortel Networks. As such, we have not provided for any potential liability in regard to this matter. If we are required to pay royalties on either past or future sales of EV-DO products, such payments would adversely affect our operating results.
The variable sales and deployment cycles for our EV-DO products are likely to cause our quarterly billings to fluctuate materially.
     The deployment by operators of wireless infrastructure equipment that enables new end-user services typically occurs in stages, and our quarterly billings will vary significantly depending on the rate at which such deployments occur. Operators will typically make significant initial investments for new equipment to assure that new services facilitated by such equipment are available to end-users throughout the operator’s network. Operators typically will defer significant additional purchases of such equipment until end-user usage of the services offered through such equipment creates demand for increased capacity. Our quarterly billings will typically increase significantly when an operator either chooses initially to deploy an EV-DO network or deploys a significant product upgrade introduced by us, and our quarterly billings will decline in other quarters when those deployments have been completed.
     It is difficult to anticipate the rate at which operators will deploy our wireless infrastructure products, the rate at which the use of new mobile broadband services will create demand for additional capacity, and the rate at which operators will implement significant product upgrades. For example, our product and service billings in fiscal 2006 reflected an increase in sales of software for OEM base station channel cards that support Rev A as operators ramped up their deployments of EV-DO infrastructure. Our product and service billings for each of the second half of fiscal 2007 and the first half of fiscal 2008 was less than our product and service billings for the first half of fiscal 2007. We believe that several large operators completed their initial deployments of Rev A software in the first half of fiscal 2007 and then moderated their deployments over the remainder of the year. We do not expect significant additional deployments by these operators until subscriber use creates a need for additional capacity. The staged deployments of wireless infrastructure equipment by customers of both our existing and new OEMs are likely to continue to cause significant volatility in our quarterly operating results.
If demand for mobile broadband services does not develop as quickly as we anticipate, or develops in a manner that we do not anticipate, our revenue and billings may decline or fail to grow, which would adversely affect our operating results.
     We derive, and expect to continue to derive, all of our revenue and billings from sales of mobile broadband infrastructure products. We expect demand for mobile broadband services to be the primary driver for growth of EV-DO networks. The market for mobile broadband services is relatively new and still evolving, and it is uncertain whether these services will achieve and sustain high levels of demand and market acceptance. The level of demand and market acceptance for these services may be adversely affected by factors that limit or interrupt the supply of mobile phones designed for EV-DO networks. For example, an order, currently under appeal, that was issued in 2007 by the United States International Trade Commission in a patent dispute between Broadcom Corporation and Qualcomm, which bars importation into the United States of some Qualcomm chips that are used in EV-DO mobile phones may have the effect of hampering demand for mobile broadband services. Another expected driver for the growth of EV-DO networks is VoIP. The migration of voice traffic to EV-DO networks will depend on many factors outside of our control. If the demand for VoIP and other mobile broadband services does not grow, or grows more

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slowly than expected, the need for our EV-DO products would be diminished and our operating results would be significantly harmed.
Deployments of our EV-DO products by two large wireless operators account for a substantial majority of our revenue and billings, and a decision by these operators to reduce their use of our products would harm our business and operating results.
     A substantial portion of our cumulative billings for fiscal 2006,, fiscal 2007 and the first half of fiscal 2008 are attributable to sales of our EV-DO products by Nortel Networks to two large wireless operators in North America. Our sales of EV-DO products currently depend to a significant extent on the rate at which these operators expand and upgrade their CDMA networks. Our business and operating results would be harmed if either of these operators were to select a wireless network solution offered by a competitor or for any other reason were to discontinue or reduce the use of our products or product upgrades in their networks.
If the market for our FMC products does not develop as we expect, or our FMC products do not achieve sufficient market acceptance, our business will suffer.
     We are investing significantly in the development of both our EV-DO based and UMTS based FMC products so that operators may offer mobile broadband services using wireline broadband connections and a combination of mobile and Wi-Fi networks. We do not expect to have meaningful sales of our FMC products until the second half of 2008 or early 2009, depending on operators’ deployment plans. However, it is possible that the market for our FMC products will not develop as we expect. Even if a market for our FMC products develops, it is uncertain whether our FMC products will achieve and sustain high levels of demand and market acceptance. Our ability to sell our FMC products will depend, in part, on factors outside our control, such as the commercial availability and market acceptance of mobile phones designed to support FMC applications and the market acceptance of femtocell access point products. The market for our FMC products may be smaller than we expect, the market may develop more slowly than we expect or our competitors may develop alternative technologies that are more attractive to operators. Our FMC products are an important component of our growth and diversification strategy and, therefore, if we are unable to successfully execute on this strategy, our sales, billings and revenues could decrease and our operating results could be harmed.
Our future sales will depend on our success in generating sales to a limited number of OEM customers, and any failure to do so would have a significant detrimental effect on our business.
     There are a limited number of OEMs that offer EV-DO solutions, several of which have developed their own EV-DO technology internally and, therefore, do not require solutions from us. We currently have agreements with two OEM customers. We do not expect to commence significant sales to one of these OEM customers in the immediate future because the market for the products that we are developing for this customer is still developing. The market for our FMC products is still developing. We currently have two agreements with OEM customers to deliver our UMTS femtocell product solutions and three agreements with OEM customers to deliver our CDMA femtocell product solutions, but have not yet had any significant sales to these customers. Our operating results for the foreseeable future will depend to a significant extent on our ability to effect sales to our existing CDMA and UMTS OEM customers and to establish new OEM relationships. Our OEM customers have substantial purchasing power and leverage in negotiating pricing and other contractual terms with us. In addition, further consolidation in the communications equipment market could adversely affect our OEM customer relationships. If we fail to generate significant product and service billings through our existing OEM relationships or if we fail to establish significant new OEM relationships, we will not be able to achieve our anticipated level of sales and our results of operations will suffer.
The unpredictability of our future results may adversely affect the trading price of our common stock.
     Our operating results have varied significantly from period to period, and we expect them to continue to vary significantly from period to period for the foreseeable future due to a number of factors in addition to the unpredictable purchasing patterns of operators. The following factors, among others, can contribute to the unpredictability of our operating results:

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    the effect of our OEM business model or changes to this model on our revenue recognition;
 
    the timing of agreements or commitments with our OEM customers for new products or software upgrades;
 
    the timing of our delivery of software upgrades;
 
    the unpredictable deployment and purchasing patterns of operators;
 
    fluctuations in demand for products of our OEM customers that are sold together with our products, and the timing and size of orders for such products of our OEM customers;
 
    new product introductions and enhancements by our competitors and us;
 
    the timing and acceptance of software upgrades sold by our OEM customers to their installed base of operators;
 
    changes in our pricing policies or the pricing policies of our competitors;
 
    our ability to develop, introduce and deploy new products and product upgrades that meet customer requirements in a timely manner;
 
    adjustments in the reporting of royalties and product sales by our OEM customers resulting from reviews and audits of such reports;
 
    our and our OEM customers’ ability to obtain sufficient supplies of limited source components or materials;
 
    our and our OEM customers’ ability to attain and maintain production volumes and quality levels for our products; and
 
    general economic conditions, as well as those specific to the communications, networking, wireless and related industries.
     Our operating expenses are largely based on our anticipated organizational and product and service billings growth, especially as we continue to invest significant resources in the development of future products and expand our international presence. Most of our expenses, such as employee compensation, are relatively fixed in the short term. As a result, any shortfall in product and service billings in relation to our expectations could cause significant changes in our operating results from period to period and could result in negative cash flow from operations.
     We believe that comparing our operating results on a period-to-period basis may not be meaningful. You should not rely on our past results as an indication of our future performance. It is likely that in some future periods, our revenue, product and service billings, earnings, cash from operations or other operating results will be below the expectations of securities analysts and investors. In that event, the price of our common stock may decrease substantially.
We may not be able to achieve profitability for any period in the future or sustain cash flow from operating activities.
     We began to recognize revenue in fiscal 2002, began to have positive cash flow from operating activities in fiscal 2004 and achieved profitability in fiscal 2006. We have only a limited operating history on which you can base your evaluation of our business, including our ability to continue to grow our revenue and billings and to sustain cash flow from operating activities and profitability. The amount and percentage of our operating expenses that are fixed expenses have increased as we have grown our business. As we continue to expand and develop our business, we will need to generate significant billings to maintain positive cash flow from operating activities, and we might not sustain positive cash flow from operating activities for any substantial period of time. We do not expect to achieve profitability for any fiscal year unless we are able to recognize significant revenue from our OEM

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arrangements in that fiscal year. If we are unable to increase our billings and sustain cash flow from operating activities, the market price of our common stock will likely fall.
Claims by other parties that we infringe their proprietary technology could force us to redesign our products or to incur significant costs.
     Many companies in the wireless industry have significant patent portfolios. These companies and other parties may claim that our products infringe their proprietary rights. We may become involved in litigation as a result of allegations that we infringe the intellectual property rights of others. Any party asserting that our products infringe their proprietary rights would force us to defend ourselves, and possibly our customers, against the alleged infringement. These claims and any resulting lawsuit, if successful, could subject us to significant liability for damages and invalidation of our proprietary rights. We also could be forced to do one or more of the following:
    stop selling, incorporating or using our products that use the challenged intellectual property;
 
    obtain from the owner of the infringed intellectual property right a license to sell or use the relevant technology, which license may not be available on reasonable terms, or at all;
 
    redesign those products that use any allegedly infringing technology, which may be costly and time-consuming; or
 
    refund deposits and other amounts received for allegedly infringing technology or products.
     For example, in 2006, we received a letter from Wi-LAN Inc. asserting that some of our EV-DO products infringe two issued United States patents and an issued Canadian patent relating to wireless communication technologies. A majority of our revenue to date has been derived from the allegedly infringing EV-DO products. We have evaluated various matters relating to Wi-LAN’s assertion and we do not believe that such products infringe any valid claim of the patents identified by Wi-LAN in that letter. In November 2007, we received an additional letter from Wi-LAN asserting that some of our other products infringe one of the previously identified United States patents and that the products identified in the first letter and some of our other products infringe two other United States patents. We have evaluated Wi-LAN’s claims related to the products and patents identified in its November 2007 letter and we do not believe that our products infringe any valid claim of the patents identified by Wi-LAN in that letter. Under certain circumstances we may seek to obtain a license to use the relevant technology from Wi-LAN. We cannot be certain that Wi-LAN would provide such a license or, if provided, what its economic terms would be. If we were to seek to obtain such a license, and such license were available from Wi-LAN, we could be required to make significant payments with respect to past and/or future sales of our products, and such payments may adversely affect our financial condition and operating results. If Wi-LAN determines to pursue claims against us for patent infringement, we might not be able to successfully defend against such claims.
     Intellectual property litigation can be costly. Even if we prevail, the cost of such litigation could deplete our financial resources. Litigation is also time consuming and could divert management’s attention and resources away from our business. Furthermore, during the course of litigation, confidential information may be disclosed in the form of documents or testimony in connection with discovery requests, depositions or trial testimony. Disclosure of our confidential information and our involvement in intellectual property litigation could materially adversely affect our business. Some of our competitors may be able to sustain the costs of complex intellectual property litigation more effectively than we can because they have substantially greater resources. In addition, any uncertainties resulting from the initiation and continuation of any litigation could significantly limit our ability to continue our operations.
If we are not successful in obtaining from third parties licenses to intellectual property that are required for GSM/UMTS products that we are developing, we may not be able to expand our business as expected and our business may suffer.
     The GSM/UMTS markets are characterized by the presence of many patents held by third parties. We will need to obtain licenses from third parties for intellectual property associated with our development of GSM/UMTS products. Any required license might not be available to us on acceptable terms, or at all. If we succeed in obtaining these licenses, but the payments under these licenses are higher than we anticipate, it would increase our costs for these products and our operating results would suffer. If we failed to obtain a required license, our ability to develop

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GSM/UMTS products would be impaired, we may not be able to expand our business as expected and our business may suffer.
If we do not timely deliver new and enhanced products that respond to customer requirements and technological changes, operators may not buy our products and our revenue and product and service billings may decline significantly.
     The market for our products is characterized by rapid technological change, frequent new product introductions and evolving industry standards. To achieve market acceptance for our products, we must effectively anticipate operator requirements, and we must offer products that meet changing operator demands in a timely manner. Operators may require product features and capabilities that our current products do not have. If we fail to develop products that satisfy operator requirements, our ability to create or increase demand for our products will be harmed.
     In developing our wireless infrastructure products, we seek to identify the long-term trends of wireless operators and their customers. The development cycle for our products and technologies can take multiple years. The ultimate success of our new products depends, in large part, on the accuracy of our assessments of the long-term needs of the industry, and it is difficult to change quickly the design or function of a planned new product if the market need does not develop as we anticipate.
     We may experience difficulties with software development, industry standards, hardware design, manufacturing or marketing that could delay or prevent our development, introduction or implementation of new products and enhancements. The introduction of new products by competitors, including some of our OEM customers, the emergence of new industry standards or the development of entirely new technologies that replace existing product offerings could render our existing or future products obsolete. If our products become technologically obsolete, operators may purchase solutions offered by our competitors and our ability to generate revenue and product and service billings may be impaired.
Our revenue and product and service billings growth will be limited if our OEM customers are unable to continue to sell our products to large wireless operators or if we have to discount our products to support the selling efforts of our OEM customers.
     Our future success depends in part on the ability of our OEM customers to sell our products to large wireless operators operating complex networks that serve large numbers of subscribers and transport high volumes of traffic. Our OEM customers operate in a highly competitive environment and may need to reduce the prices they charge for our products in order to maintain or expand their market share. We may reduce the prices we charge our OEM customers for our products in order to support their selling efforts. If our OEM customers incur shortfalls in their sales of mobile broadband solutions to their existing customers or fail to expand their customer base to include additional operators that deploy our products in large-scale networks serving significant numbers of subscribers or if we reduce the prices we charge our OEM customers for our products, our operating results will suffer.
We depend on sole sources for certain components of our products and our business would be harmed if the supply from our sole sources were disrupted.
     We depend on sole sources for certain components of our products and also rely on contract manufacturers for the production of our hardware products. We have not entered into long-term agreements with any of our suppliers. We depend on several software vendors for the operating system and other capabilities used in our products. In addition, we and one of our OEM customers purchase from Qualcomm the cell site modem chips used in any base station and base station channel cards. If these cell site modem chips were to become unavailable to us or to our OEM customers, it would take us a significant period of time to develop alternative solutions and it is likely that our operating results would be significantly harmed.
The market for network infrastructure products is highly competitive and continually evolving, and if we are not able to compete effectively, we may not be able to continue to expand our business as expected and our business may suffer.
     The market for network infrastructure products is highly competitive and rapidly evolving. The market is subject to changing technology trends, shifting customer needs and expectations and frequent introduction of new products.

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We expect competition to persist and intensify in the future as the market for network infrastructure products grows and new and existing competitors devote considerable resources to introducing and enhancing products. For our EV-DO products, we face competition from several of the world’s largest telecommunications equipment providers that provide either a directly competitive product or a product based on alternative technologies, including Alcatel-Lucent, Hitachi, Huawei, LG-Nortel and Samsung. In our sales to OEM customers, we face the competitive risk that OEMs might seek to develop internally alternative solutions to those currently purchased from us. Additionally, our OEM customers might elect to purchase technology from our competitors. For our FMC products, our competition includes several public companies, including Cisco and Ericsson, as well as several private companies such as Huawei. In the air-to-ground markets, the competitive environment is less developed but, as the market grows, we believe the competitive pressures in this market may increase.
     Our current and potential competitors may have significantly greater financial, technical, marketing and other resources than we do and may be able to devote greater resources to the development, promotion, sale and support of their products. In addition, many of our competitors have more extensive customer relationships than we do, and, therefore, our competitors may be in a stronger position to respond quickly to new technologies and may be able to market or sell their products more effectively. Moreover, further consolidation in the communications equipment market could adversely affect our OEM customer relationships and competitive position. Our products may not continue to compete favorably. We may not be successful in the face of increasing competition from new products and enhancements introduced by existing competitors or new companies entering the markets in which we provide products. As a result, we may experience price reductions for our products, order cancellations and increased expenses. Accordingly, our business may not grow as expected and our business may suffer.
Our agreement with our largest OEM customer, Nortel Networks, provides Nortel Networks with an option to license some of our intellectual property to develop internally products competitive with the products it currently purchases from us.
     Under our OEM agreement with Nortel Networks, Nortel Networks has the option to purchase from us the specification for communications among base stations, radio network controllers and network management systems. The specifications would enable Nortel Networks to develop EV-DO software to work with the base station channel card software licensed from us and deployed in the networks of its wireless operator customers. If Nortel Networks elects to exercise this option, Nortel Networks will pay us a fixed fee as well as a significant royalty on sales of current and future products that incorporate this specification. The royalty rate varies with annual volume but represents a portion of the license fees we currently receive from our sales to Nortel Networks. If Nortel Networks were to exercise the option, Nortel Networks would receive the current interface specification at the time of option exercise, updated with an upgrade then under development, plus one additional upgrade subject to a development agreement within a limited time after the option exercise for an additional fee. If Nortel Networks were in the future to develop its own EV-DO software, it could, by exercising this option, enable its own software to communicate with the base station channel cards currently installed in its customers’ networks.
Because our business depends on the continued strength of the communications industry, our operating results will suffer if that industry experiences an economic downturn.
     We derive most of our revenue and billings from purchases of our products by customers in the communications industry. Our future success depends upon the continued demand from wireless operators for communications equipment. The communications industry is cyclical and reactive to general economic conditions. In the recent past, worldwide economic downturns, pricing pressures, mergers and deregulation have led to consolidations and reorganizations. These downturns, pricing pressures and restructurings have caused delays and reductions in capital and operating expenditures by many wireless operators. These delays and reductions, in turn, have reduced demand for communications products such as ours. A continuation or recurrence of these industry patterns, as well as general domestic and foreign economic conditions and other factors that reduce spending by companies in the communications industry, could harm our operating results in the future.
The success of our business could be jeopardized if we are unable to protect our intellectual property adequately.

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     Our success depends to a degree upon the protection of our software, hardware designs and other proprietary technology. We rely on a combination of patent, copyright, trademark and trade secret laws, and confidentiality provisions in agreements with employees, contract manufacturers, consultants, customers and other third parties to protect our intellectual property rights. Other parties may not comply with the terms of their agreements with us, and we may not be able to enforce our rights adequately against these parties. In addition, unauthorized parties may attempt to copy or otherwise obtain and use our products or technology. Monitoring unauthorized use of our products is difficult, and we cannot be certain that the steps we have taken will prevent unauthorized use of our technology, particularly in foreign countries where the laws may not protect our proprietary rights as fully as in the United States. If competitors are able to use our technology, our ability to compete effectively could be harmed. For example, if a competitor were to gain use of certain of our proprietary technology, it might be able to develop and manufacture similarly designed and equipped mobile broadband solutions at a reduced cost, which could result in a decrease in demand for our products. Furthermore, we have adopted a strategy of seeking limited patent protection both in the United States and in foreign countries with respect to the technologies used in or relating to our products. We do not know whether any of our pending patent applications will result in the issuance of patents or whether the examination process will require us to narrow our claims, and even if patents are issued, they may be contested, circumvented or invalidated over the course of our business. Moreover, the rights granted under any issued patents may not provide us with proprietary protection or competitive advantages, and, as with any technology, competitors may be able to develop and obtain patents for technologies that are similar to or superior to our technologies. If that happens, we may need to license these technologies and we may not be able to obtain licenses on reasonable terms, if at all, thereby causing great harm to our business. In addition, if we resort to legal proceedings to enforce our intellectual property rights, the proceedings could become burdensome and expensive, even if we were to prevail.
We may engage in future acquisitions that could disrupt our business, cause dilution to our stockholders and harm our financial condition and operating results.
     We intend to pursue acquisitions of companies or assets in order to enhance our market position or expand our product portfolio. We may not be able to find suitable acquisition candidates and we may not be able to complete acquisitions on favorable terms, if at all. If we do complete acquisitions, we cannot be sure that they will ultimately strengthen our competitive position or that they will not be viewed negatively by customers, securities analysts or investors. In addition, any acquisitions that we make could lead to difficulties in integrating personnel and operations from the acquired businesses and in retaining and motivating key personnel from those businesses. Acquisitions may disrupt our ongoing operations, divert management from day-to-day responsibilities, increase our expenses and harm our operating results or financial condition. Future acquisitions may reduce our cash available for operations and other uses and could result in an increase in amortization expense related to identifiable assets acquired, potentially dilutive issuances of equity securities or the incurrence of debt, which could harm our business, financial condition and operating results.
Future interpretations of existing accounting standards could adversely affect our operating results.
     Generally Accepted Accounting Principles in the United States are subject to interpretation by the Financial Accounting Standards Board, or FASB, the American Institute of Certified Public Accountants, or AICPA, the SEC and various other bodies formed to promulgate and interpret appropriate accounting principles. A change in these principles or interpretations could have a significant effect on our reported financial results, and they could affect the reporting of transactions completed before the announcement of a change.
     For example, we recognize substantially all of our revenue in accordance with AICPA Statement of Position 97-2, Software Revenue Recognition, or SOP No. 97-2. The AICPA and its Software Revenue Recognition Task Force continue to issue interpretations and guidance for applying the relevant accounting standards to a wide range of sales contract terms and business arrangements that are prevalent in software licensing arrangements and arrangements for the sale of hardware products that contain more than an insignificant amount of software. We collaborate with our OEM customers to develop and negotiate pricing for specific features for future product releases and specified software upgrades. Because we do not sell the same products and upgrades to more than one customer, we are unable to establish fair value for these products and upgrades. As a result, under SOP No. 97-2, we are required to defer most of our revenue from sales to our OEM customers until we ship specified upgrades that were committed to the OEM customer at the time of sale. Future interpretations of existing accounting standards, including SOP No. 97-2, or changes in our business practices could result in future changes in our revenue recognition accounting policies that have a material adverse effect on our results of operations. As a result, we may be required to change

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the timing of revenue recognition in future periods, which could adversely affect our operating results in current or future periods.
The loss of key personnel or an inability to attract and retain additional personnel may impair our ability to grow our business.
     We are highly dependent upon the continued service and performance of our senior management team and key technical and sales personnel, including our President and Chief Executive Officer, Chief Technical Officer, and Vice President, Femto Business and Corporate Development. None of these officers is a party to an employment agreement with us, and any of them therefore may terminate employment with us at any time with no advance notice. The replacement of these officers likely would involve significant time and costs, and the loss of these officers may significantly delay or prevent the achievement of our business objectives.
     We face intense competition for qualified individuals from numerous technology, software and manufacturing companies. For example, our competitors may be able attract and retain a more qualified engineering team by offering more competitive compensation packages. If we are unable to attract new engineers and retain our current engineers, we may not be able to develop and service our products at the same levels as our competitors and we may, therefore, lose potential customers and sales penetration in certain markets. Our failure to attract and retain suitably qualified individuals could have an adverse effect on our ability to implement our business plan and, as a result, our ability to compete effectively in the mobile broadband solutions market could decrease, our operating results could suffer and our revenues could decrease.
We have incurred, and will continue to incur, significant increased costs as a result of operating as a public company as compared with our history as a private company, and our management is required to devote substantial time to public company compliance initiatives. If we are unable to absorb these increased costs or maintain management focus on development and sales of our product offerings and services, we may not be able to achieve our business plan.
     As a public company, we have incurred, and will continue to incur, significant legal, accounting and other expenses that we did not incur as a private company. In addition, the Sarbanes-Oxley Act, as well as rules subsequently implemented by the SEC and the NASDAQ Stock Market, have imposed a variety of requirements on public companies, including requiring changes in corporate governance practices. Our management and other personnel need to devote a substantial amount of time to these compliance initiatives. Moreover, these rules and regulations have increased our legal and financial compliance costs and have made some activities more time-consuming and costly. For example, we believe these new rules and regulations have made it more difficult and expensive for us to obtain director and officer liability insurance.
     In addition, the Sarbanes-Oxley Act requires, among other things, that we maintain effective internal controls for financial reporting and disclosure controls and procedures. In particular, commencing with respect to our fiscal year ending December 28, 2008, we must perform system and process evaluation and testing of our internal controls over financial reporting to allow management and our independent registered public accounting firm to report on the effectiveness of our internal controls over financial reporting, as required by Section 404 of the Sarbanes-Oxley Act, or Section 404. Our testing, or the subsequent testing by our independent registered public accounting firm, may reveal deficiencies in our internal controls over financial reporting that are deemed to be material weaknesses. Our compliance with Section 404 will require that we incur substantial accounting expense and expend significant management efforts. We currently do not have an internal audit group, and may need to continue to hire additional accounting and financial staff with appropriate public company experience and technical accounting knowledge. Moreover, if we are not able to comply with the requirements of Section 404 in a timely manner, or if we or our independent registered public accounting firm identifies deficiencies in our internal controls over financial reporting that are deemed to be material weaknesses, the market price of our stock could decline and we could be subject to sanctions or investigations by NASDAQ, the SEC or other regulatory authorities, which would require additional financial and management resources.
     The increased costs associated with operating as a public company may decrease our net income or increase our net loss, and may require us to reduce costs in other areas of our business or increase the prices of our products or

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services. Additionally, if these requirements divert our management’s attention from other business concerns, they could have a material adverse effect on our business, financial condition and results of operations.
If we are unable to manage our growth and expand our operations successfully, our business and operating results will be harmed and our reputation may be damaged.
     We anticipate that further expansion of our infrastructure and headcount will be required to achieve planned expansion of our product offerings and planned increases in our customer base. Our growth has placed, and is expected to continue to place, a significant strain on our administrative and operational infrastructure. Our ability to manage our operations and growth will require us to continue to refine our operational, financial and management controls, human resource policies, and reporting systems and procedures.
     We may not be able to implement improvements to our management information and control systems in an efficient or timely manner and may discover deficiencies in existing systems and controls. If we are unable to manage future expansion, our ability to provide high quality products and services could be harmed, which would damage our reputation and brand and substantially harm our business and results of operations.
We may need additional capital in the future, which may not be available to us, and if it is available, may dilute our existing stockholders’ ownership of our common stock.
     We may need to raise additional funds through public or private debt or equity financings in order to:
    fund ongoing operations;
 
    take advantage of opportunities, including more rapid expansion of our business or the acquisition of complementary products, technologies or businesses;
 
    develop new products; or
 
    respond to competitive pressures.
     Any additional capital raised through the sale of equity may dilute our current stockholders’ percentage ownership of our common stock. Capital raised through debt financing would require us to make periodic interest payments and may impose potentially restrictive covenants on the conduct of our business. Furthermore, additional financings may not be available on terms favorable to us, or at all. A failure to obtain additional funding could prevent us from making expenditures that may be required to grow or maintain our operations.
Our ability to sell our products depends in part on the quality of our support and services offerings, and our failure to offer high quality support and services would have a material adverse effect on our sales and operating results.
     Once our products are deployed within an operator’s network, the operator and our OEM customer depend on our support organization to resolve issues relating to our products. A high level of support is critical for the successful marketing and sale of our products. If we do not effectively assist operators in deploying our products, succeed in helping operators quickly resolve post-deployment issues, and provide effective ongoing support it would adversely affect our ability to sell our products. As a result, our failure to maintain high quality support and services would have a material adverse effect on our business and operating results.
Our products are highly technical and may contain undetected software or hardware errors, which could cause harm to our reputation and adversely affect our business.
     Our products are highly technical and complex and are critical to the operation of many networks. Our products have contained and are expected to continue to contain one or more undetected errors, defects or security vulnerabilities. Some errors in our products may only be discovered after a product has been installed and used by an operator. For example, we have encountered errors in our software products that have caused operators using our products to experience a temporary loss of certain network services. Any errors, defects or security vulnerabilities

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discovered in our products after commercial release could result in loss of revenue or delay in revenue recognition, loss of customers and increased service and warranty cost, any of which could adversely affect our business, results of operations and financial condition. In addition, we could face claims for product liability, tort or breach of warranty, including claims related to changes to our products made by our OEM customers. Our contracts for the sale of our products contain provisions relating to warranty disclaimers and liability limitations, which in certain cases may not be upheld. Defending a lawsuit, regardless of its merit, is costly and may divert management’s attention and adversely affect the market’s perception of us and our products. In addition, if our business liability insurance coverage proves inadequate or future coverage is unavailable on acceptable terms or at all, our financial condition could be harmed.
Our international operations subject us to additional risks that can adversely affect our operating results.
     We have sales personnel in seven countries worldwide, approximately 135 engineers in Bangalore, India and approximately 40 engineers in Cambridge, United Kingdom. We expect to continue to add personnel in foreign countries, especially at our Bangalore, India and Cambridge, United Kingdom facilities. Our international operations subject us to a variety of risks, including:
    the difficulty of managing and staffing foreign offices and the increased travel, infrastructure and legal compliance costs associated with multiple international locations;
 
    difficulties in enforcing contracts, collecting accounts receivable and longer payment cycles, especially in emerging markets;
 
    the need to localize our products and licensing programs for international customers;
 
    tariffs and trade barriers and other regulatory or contractual limitations on our ability to sell or develop our products in certain foreign markets;
 
    increased exposure to foreign currency exchange rate risk; and
 
    reduced protection for intellectual property rights in some countries.
     As we continue to expand our business globally, our success will depend, in large part, on our ability to anticipate and effectively manage these and other risks associated with our international operations. We may derive some of our future revenue from customers in foreign countries that pay for our products in the form of their local currency. Our failure to manage any of these risks successfully could harm our international operations and reduce our international sales, adversely affecting our business, operating results and financial condition.
If wireless devices pose safety risks, we may be subject to new regulations, and demand for our products and those of our licensees and customers may decrease.
     Concerns over the effects of radio frequency emissions, even if unfounded, may have the effect of discouraging the use of wireless devices, which would decrease demand for our products and those of our licensees and customers. In recent years, the FCC and foreign regulatory agencies have updated the guidelines and methods they use for evaluating radio frequency emissions from radio equipment, including wireless phones and other wireless devices. In addition, interest groups have requested that the FCC investigate claims that wireless communications technologies pose health concerns and cause interference with airbags, hearing aids and other medical devices. Concerns have also been expressed over the possibility of safety risks due to a lack of attention associated with the use of wireless devices while driving. Any legislation that may be adopted in response to these expressions of concern could reduce demand for our products and those of our licensees and customers in the United States as well as foreign countries.

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Risks Relating to Ownership of Our Common Stock
The market price of our common stock may be volatile.
     Our common stock has a limited trading history. The trading prices of the securities of technology companies have been highly volatile. Some of the factors that may cause the market price of our common stock to fluctuate include:
    fluctuations in our quarterly financial results or the quarterly financial results of companies perceived to be similar to us;
 
    fluctuations in our revenue as a result of our revenue recognition policy, even during periods of significant sales activity;
 
    changes in estimates of our financial results or recommendations by securities analysts;
 
    failure of any of our products to achieve or maintain market acceptance;
 
    any adverse change in our relationship with Nortel Networks;
 
    changes in market valuations of similar companies;
 
    success of competitive products;
 
    changes in our capital structure, such as future issuances of securities or the incurrence of debt;
 
    announcements by us or our competitors of significant products, contracts, acquisitions or strategic alliances;
 
    regulatory developments in the United States, foreign countries or both;
 
    litigation involving our company, our general industry or both;
 
    additions or departures of key personnel;
 
    general perception of the future of CDMA technology;
 
    investors’ general perception of us; and
 
    changes in general economic, industry and market conditions.
     In addition, if the market for technology stocks or the stock market in general experiences a loss of investor confidence, the trading price of our common stock could decline for reasons unrelated to our business, financial condition or results of operations. If any of the foregoing occurs, it could cause our stock price to fall and may expose us to class action lawsuits that, even if unsuccessful, could be costly to defend and a distraction to management.
If equity research analysts do not publish research or reports about our business or if they issue unfavorable commentary or downgrade our common stock, the price of our common stock could decline.
     The trading market for our common stock will rely in part on the research and reports that equity research analysts publish about us and our business. We do not control these analysts. The price of our stock could decline if one or more equity analysts downgrade our stock or if those analysts issue other unfavorable commentary or cease publishing reports about us or our business.

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A significant portion of our total outstanding shares may be sold into the public market in the near future, which could cause the market price of our common stock to drop significantly, even if our business is doing well.
     If our existing stockholders sell a large number of shares of our common stock or the public market perceives that existing stockholders might sell shares of common stock, the market price of our common stock could decline significantly.
     The holders of a majority of our common stock have rights, subject to some conditions, to require us to file registration statements under the Securities Act or to include their shares in registration statements that we may file in the future for ourselves or other stockholders. If we register their shares of common stock, they could sell those shares in the public market.
Our directors and management will exercise significant control over our company.
     Our directors and executive officers and their affiliates beneficially owned a majority of our outstanding common stock as of June 29, 2008. As a result, these stockholders, if they act together, will be able to influence our management and affairs and all matters requiring stockholder approval, including the election of directors and approval of significant corporate transactions. This concentration of ownership may have the effect of delaying or preventing a change in control of our company and might affect the market price of our common stock.
Provisions in our certificate of incorporation, our by-laws or Delaware law might discourage, delay or prevent a change in control of our company or changes in our management and, therefore, depress the trading price of our common stock.
     Provisions of our certificate of incorporation, our by-laws or Delaware law may discourage, delay or prevent a merger, acquisition or other change in control that stockholders may consider favorable, including transactions in which our stockholders might otherwise receive a premium for their shares of our common stock. These provisions may also prevent or frustrate attempts by our stockholders to replace or remove our management. These provisions include:
    limitations on the removal of directors;
 
    a classified board of directors so that not all members of our board are elected at one time;
 
    advance notice requirements for stockholder proposals and nominations;
 
    the inability of stockholders to act by written consent or to call special meetings;
 
    the ability of our board of directors to make, alter or repeal our by-laws; and
 
    the ability of our board of directors to designate the terms of and issue new series of preferred stock without stockholder approval, which could be used to institute a rights plan, or a poison pill, that would work to dilute the stock ownership of a potential hostile acquirer, likely preventing acquisitions that have not been approved by our board of directors.
     In addition, Section 203 of the Delaware General Corporation Law prohibits a publicly-held Delaware corporation from engaging in a business combination with an interested stockholder, generally a person which together with its affiliates owns, or within the last three years has owned, 15% of our voting stock, for a period of three years after the date of the transaction in which the person became an interested stockholder, unless the business combination is approved in a prescribed manner.
     The existence of the foregoing provisions and anti-takeover measures could limit the price that investors might be willing to pay in the future for shares of our common stock. They could also deter potential acquirers of our company, thereby reducing the likelihood that stockholders could receive a premium for their common stock in an acquisition.

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We do not currently intend to pay dividends on our common stock and, consequently, the ability to achieve a return on an investment in our common stock will depend on appreciation in the price of our common stock.
     Although we paid a special cash dividend on our capital stock in April 2007, we do not currently intend to pay any cash dividends on our common stock for the foreseeable future. We currently intend to invest our future earnings, if any, to fund our growth. Therefore, stockholders are not likely to receive any dividends on shares of common stock for the foreseeable future.

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Item 4. Submission of Matters to a Vote of Security Holders.
     We held our annual meeting of stockholders on May 22, 2008. At the meeting, our stockholders:
    Elected Sanjeev Verma as a Class I Director, to serve until our 2011 annual meeting of stockholders and until his successor is duly elected and qualified. Holders of 54,224,752 shares of our common stock voted in favor of Mr. Verma’s election, and holders of 388,027 shares of our common stock withheld their votes in the election of Mr. Verma
 
    Ratified the appointment by our board of directors of Ernst & Young LLP, an independent registered public accounting firm, as our independent auditors for our fiscal year ending December 28, 2008. Holders of 54,264,481 shares of our common stock voted in favor of this proposal. Holders of 347,298 shares of our common stock voted against this proposal. Holders of 1,000 shares of our common stock abstained from voting on this matter.
     The terms of office of the following directors continued after the annual meeting of stockholders: Hassan Ahmed, Robert P. Badavas, Randell S. Battat, Gururay Deshpade, Paul J. Ferri and Anthony S. Thornley.

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 Item 6. Exhibits.
31.1   Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, Rule 13a-14(a)/15d- 14(a), by Chief Executive Officer.
 
31.2   Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, Rule 13a-14(a)/15d-14(a), by Chief Financial Officer.
 
32.1   Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Chief Executive Officer.
 
32.2   Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Chief Financial Officer.

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SIGNATURES
     Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.
         
  AIRVANA, INC.
 
 
  By:   /s/ Randall S. Battat    
    Randall S. Battat   
Date: August 6, 2008    President and Chief Executive Officer
(Principal Executive Officer) 
 
 
     
  By:   /s/ Jeffrey D. Glidden    
    Jeffrey D. Glidden   
Date: August 6, 2008    Vice President, Chief Financial Officer
(Principal Financial and Accounting Officer) 
 
 

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