Android gamers need to loosen the purse strings: Carmack

Mobot - Gaming is big business – Call of Duty: Black Ops, for instance, now ranks as the highest grossing entertainment title of any kind ever.

But while the iPhone is well established as a mature gaming platform in the mobile space, it's a different story with Android. And the reason, according to games guru John Carmack, is that Android owners just don't spend money.

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