Just wondering if anyone knows of any opensource/free/shareware/inexpensive "carputer" software packages. Something like "mythtv" for a carputer. Was thinking GPS, navagation, DVD playback, etc. with a touchscreen interface.

Reason I ask is, right now I have the possibility of adding a 7" touchscreen to my dash, and using the empeg as the "main stereo". Im also thinking ahead, to a sad time when the empeg may die. Or to a car where I just cannot fit it anymore...

Jeff