A lot of carriers in US and Europe are now beginning to roll out 3G Wireless services. This bodes well for Qualcomm which sees gains from either 3G standard be it CDMA2000/EVDO in US or WCDMA in Europe.
Stock prices move, and (only) then do journalists seek explanations and justifications. Meanwhile, investors should have been well prepared for this price move... and with more upside price action yet to occur. Please note the crucial difference between investors and journalists: Investors invest in advance of price moves, whereas journalists explain price moves retrospectively.
Apply the notion of critical mass, and you have an inflection point, a moment when things change. Such as a stock that has traded sideways for a long while and thus lulls possible investors into inaction.