Google's Android OS Live on One Third of U.S. Smartphones

Google's Android mobile operating system now runs approximately one-third of smartphone devices in the U.S., according to data from comScore. The platform grew its market share by seven percentage points in the three months ending February 31, the measurement firm estimated, when compared with the three months prior.

Apple, meanwhile, saw the market share of its iOS smartphone platform remain relatively flat, growing its share by just 0.2 percentage points over the same period.

Google's growth, therefore, appears to be coming largely at the expense of BlackBerry manufacturer RIM, Microsoft, and Palm, which saw market share percentage point losses of 4.6 percent, 1.3 percent, and 1.1 percent, respectively.

It's important to note, however, that this data reflects OS use on smartphone devices only, and does not include other connected devices such as tablets or the iPod Touch.