|comScore: November 2010 U.S. Mobile Subscriber Market Share|
In a different report by Nielsen on the same period, it was found that Apple iOS is ranked top, followed by Google Android and RIM BlackBerry. However, this is with Android closing in at a faster pace than iOS's increase. In that report, BlackBerry is seen declining.
Trend by comScore and Nielsen conclude that Google Android is increasing at a much faster pace than Applie iOS and RIM BlackBerry dominance in the U.S. market is over.