This excerpt taken from the EBAY 10-K filed Feb 17, 2010.
Bill Me Later
We continue to invest in product development designed to capitalize on synergies between Bill Me Later and other eBay brands. In 2009, we introduced Bill Me Later as a funding source within a PayPal account for certain U.S. customers and we also began to offer Bill Me Later as a payment method on eBay.com in the U.S. In 2010, we intend to further expand these offerings. In addition, we have combined our PayPal and Bill Me Later merchant sales teams and have begun selling both the PayPal and Bill Me Later solutions in a coordinated effort to offer merchants greater efficiency in product integration.