From Mr. Gruber (<a href="http://daringfireball.net/linked/2010/01/18/gartner-app-store" rel="nofollow">http://daringfireball.net/linked/2010/01/18/gartner-app-stor...</a>):<p>Foresman is wrong here. Apple didn’t announce 3 billion App Store sales; they announced 3 billion downloads, including free apps. Apple has never (to my knowledge) publicly revealed the breakdown between free and paid app downloads from the App Store.<p>However, if Gartner is correct that all other platforms combined accounted for only 16 million mobile app sales last year, then Apple’s share of the market is astonishingly high. It’s not 99.4 percent, as Foresman indicates, but still crazy-ass high.