Fuck the phones, I want android in my car. And not for GPS. For music/video playback.
And the way "carputers" are evolving, I imagine you'd eventually be able to get some sort of headunit with skype call functionality built in. Or similar.
Plus its google, so I'm sure they'd have some whiz-bang algorithmic stuff that changes commercials and/or google ads based on patterns of right and left turns, or mapping it to specific streets, like stock quotes on the way to work and beer advertisements on the way home