comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released data from the comScore MobiLens service, reporting key trends in the U.S. mobile phone industry during the three month period between October 2009 and January 2010. The report ranked the leading mobile original equipment manufacturers (OEMs) and smartphone operating system (OS) platforms in the U.S. according to their share of current mobile subscribers age 13 and older, as well as popular activities and content accessed via the subscriber's primary mobile phone. The January report found Motorola to be the top handset manufacturer overall with 22.9 percent market share, while RIM led among smartphone platforms with 43.0 percent market share.

Source: comScore