Actually google has already launched a full OS, android is very capable of running PC. In fact I'd guess that whatever is in the works is android based...
You code in java(googlebutchered) for android, it recognizes some native C but it's really java is the way to go. I think they would have to make Android C/Python compatible to succeed.
Or maybe I just don't like thinking of anything to do with java after working with it for hours on end for days at a time

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My phone has the android OS and I make apps for it. Fun but frustrating.
I have not seen Android on PCs, on netbooks, but no PCs yet.
Even an Xbox, but still no PC

. I'm sure they will get it in time, it really is a nifty OS.