comScore: 78 Million Americans Own Smartphones, Up 11% in Latest Quarter

For the three month average period ending in May, 234 million Americans ages 13 and older used mobile devices, according to new data released by comScore. 76.8 million people in the U.S. owned smartphones during the three months ending in May 2011, up 11 percent from the preceding three month period. Google Android ranked as the top operating system with 38.1 percent of U.S. smartphone subscribers, up 5.1 percentage points. Apple strengthened its #2 position with 26.6 percent of the smartphone market, up 1.4 percentage points. RIM ranked third with 24.7 percent share, followed by Microsoft (5.8 percent) and Palm (2.4 percent).
http://www.comscore.com