Tracking smartphone OS growth this year

Smartphones--and their accompanying operating systems and application storefronts--were one of the major wireless success stories this year. So how have the various competing smartphone platforms--Android, iPhone, BlackBerry, Windows Mobile and Symbian--fared over this period? Numbers from research firm comScore show Research In Motion's BlackBerry OS and Apple's iPhone OS have grown, while Symbian and Microsoft's Windows Mobile platform have stagnated. Special feature