I did not make it clear, but... You actually can run this from any PC, and then copy the folder(s) that the app makes to your Streetdeck\Virtual Earth\Hybrid folder.
It's not the easiest way but it works if you don't have internet in your CarPC. I am also working on a neat syncing solution that does not require any network connectivity, hopefully this weekend I will get to work on it and then I can post more details.
Thanks for the kind words!
Mark
p.s. Yes, I do work for Microsoft, in fact I work for the Automotive team (if you've heard of the Ford SYNC project - that's my team, check it out on
http://www.syncmyride.com - coming to a Ford vehicle near you very soon!)