Time will tell
From where I am that's already happened. Android has gotten way bigger than Google. I see Android everywhere but just don't see much of Google, apart from what I and a few other expats use. It'll be forked and it may not necessarily be called "Android", but it's still an open source OS. It's not like Palm OS, BlackBerry OS, Symbian, iOS or Windows, where there's just one company controlling the whole thing and no one else can. If a manufacturer wants to use Windows Phone, they have to pay Microsoft lots of $$$ and they license it. Google keeps control of their proprietary apps and services that run on Android, like the Play Store, Maps, G+, Youtube, etc. Amazon are doing their own things with Android outside of what Google dictates, and that's a US company.
BTW I saw a phone the other day that apparently was Android, had "OS 4.0" in the device info and looked rather like ICS. However doing the easter egg thing and triple tapping on "Kernel version" revealed it to be 2.3 Gingerbread. I've also seen knock-off iPhones where they've made quite a convincing iOS out of Android, even down to a fake iTunes Store.

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