comScore Says 7 in 10 U.S. Smartphones Now Run Either Android or iOS

It’s an Android and iOS-dominated smartphone world. That much is clear from the latest data presented by the comScore MobiLens service.

Incredibly, 82.2 million people in the United States owned smartphones during the three months ending in July 2011. That figure represents a staggering 10 percent spike from the preceding three month period.

Once again, Google’s Android ranked as the top smartphone platform with 41.8 percent market share, up 5.4 percentage points. Apple, however, also gained added traction, boosting its #2 position with 27.0 percent of the smartphone market, up 1.0 percentage point from the prior reporting period.

So if Android and iOS have climbed, that means someone has fallen. Who were the unlucky losers of Q2? RIM, Microsoft, and Symbian.

RIM ranked third overall with a 21.7 percent share, followed by Microsoft (5.7 percent) and Symbian (1.9 percent). All three platforms gave up substantial ground to Android and iOS since the last quarterly reporting period.

The study surveyed more than 30,000 U.S. mobile subscribers over the age of 13.