sooo you basically want a Celio Redfly with a touchscreen, without a keyboard that you can mount in your dashboard?
http://www.engadget.com/2008/11/18/c...one-is-asking/
That might be cool. Wouldn't be too hard for a devleoper to create a fullscreen touch navigator optimized for in-car use (that is big buttons to the core features: music, speed dial, navigation)
Ive seen some articles about iPhone docks in cars, i think it was a range rover. so this would be the docking solution for WinMo phones.