In their latest report, NPD group reports that the Android smartphone mobile operating system significantly increased its market-share lead by 9%tage points, since the prior quarter, to reach 5% of the U.S. consumer smartphone market.
Apple iOS share declined 4%tage points to comprise 19% of unit sales in Q4; RIM OS fell 2 points to tie Apple.
Windows Mobile (6.x), Microsoft's legacy OS, fell 3 points to 4%, as the new Windows Phone 7 OS debuted at 2%; and Palm's WebOS held at 2%.
Despite buy-one-get-one promotions at both AT&T and T-Mobile, the WinP7 OS claimed less market share than its predecessor, WinMo, for which handsets are still available at all four major U.S. carriers. WP7 also entered the market with lower share than either Android or webOS at their debuts, according to NPD's Mobile Phone Track.
[tags]wp7,winp7,windows mobile 6,winmo,market share,npd[/tags]