@oznerol,A website I like to read (you should all RSS it) from a former upity up at Codemasters predicted such a move about a year ago...I think it is a defensive move on Google's part to ensure they have a foothold in the game advertising space before being 'locked out' by iTunes game distribution (I believe they will beef up AppleTV and use it as a casual games distribution node straight to the living room) and LIVE. Google needs to get into this space before the walled gardens close around gaming.
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