This really isn't good news for the Android OS. I guess we have Zune vs Plays-For-Sure part 3.
Strategically speaking, for Google to win, the Google Phone doesn't have to win. Android has to win. If the Google Phone only reaches the digerati and hipsters, but then heavily influences the rest of the Android market by pushing innovative things forward, then Google wins.
I would be surprised if you see anything non-standard on a Google phone.
Didn't Microsoft do something similar with MFC? They tell everyone that MFC is the future, and so my last company builds our development environment on top of it. Then we start finding significant bugs in MFC. We later discover that Microsoft is moving on from MFC and using something else.
The more things change...