According to figures released by ComScore, the smartphone market in the US has exceeded 100 million subscribers for the first time. The milestone was reached in January when the total smartphone userbase hit 101.3 million — this represents growth of 13 percent since October, so the figure is likely millions more now that we're in March. Google and Apple both saw small increases in marketshare to take 48.6 percent and 29.5 percent respectively, whereas RIM continued its decline and now accounts for just over 15 percent of the market. Microsoft also saw a fall in its numbers, though it looks like Windows Mobile and Windows Phone are combined in ComScore's figures. We'd obviously expect a decline in the former, but it's a little surprising to see the company's new star eclipsed by its predecessor's demise.

Chart: U.S. Smartphone Platform Share Jan-2012Description: The number of U.S. smartphone subscribers surpassed the 100-million mark in January, up 13 percent since October to 101.3 million subscribers. Google Android ranked as the top smartphone platform with 48.6 percent market share (up 2.3 percentage points) followed by Apple with 29.5 percent market share (up 1.4 percentage points). RIM ranked third with 15.2 percent share, followed by Microsoft (4.4 percent) and Symbian (1.5 percent). Source : comScore MobiLens, Subscribers Age: 13+, 3 Mo. Avg. Ending Jan-2012Tags: smartphoneAuthor: comScore, Inc.charts powered by iCharts