Stop us if you’ve heard this one before: Android and iOS continued to expand their market shares in the United States at the expense of Windows Phone and BlackBerry. The latest numbers from comScore show that Android devices accounted for 52.4% of all U.S. smartphone subscriptions in the spring quarter this year, up from 51.7% in the previous quarter. Apple’s ever-popular iPhone also saw its U.S. market share expand to 39.2% in the spring, up from 38.9% in the previous quarter. ComScore’s numbers weren’t so rosy for BlackBerry and Windows Phone, however. In BlackBerry’s case, the company saw its market share drop from 5.4% to 4.8% on the quarter while Windows Phone’s market share dropped from 3.2% to just 3%.

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