Chart of the day: Whose lunch has Android been eating?

Source: from comScore data. Click to enlarge.

FORTUNE — It’s often been said that Android’s share of the U.S. smartphone market has come chiefly out of the hides of Research in Motion’s (BBRY) BlackBerry and Microsoft’s (MSFT) Windows Phone, but nothing shows this quite as clearly as Horace Dediu’s charts at

Not that Apple (AAPL) hasn’t been hurt by the success of Google’s (GOOG) mobile platform. Some of the customers who bought Android phones are customers who didn’t buy iPhones.

For more on these market shifts, see Dediu’s Measuring Platform Churn.

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