I came here looking for information on this very topic. So far I have selected the Pandaboard (http://www.pandaboard.org/) as my primary candidate (if I can operate it without being hooked up to a desktop, I am unsure as it is a development board). I have a black box N I will try to mount it in, and it apparently works with the Lilliput 629GL-70NP/C/T 7" VGA Touch Screen Monitor (according to a post here: http://groups.google.com/group/panda...0d7cf1b96b98e9 ). I may be able to use a camera add-in board for back up camera, or in car video calls or something. I am unsure if I wil be able to get GPS going with a sirf star but I think there is an add-on board for that too. It has Bluetooth, wireless N, dual core arm-9 1Ghz, 1GB ram, 3 USB, etc (http://www.digikey.com/us/en/ph/texa...andaboard.html).
I still need to research 5V power supplies. . . and I am sure there are other things I am leaving out.
Any comments would be appreciated.
Its also way cheaper than it would cost you to go with a standard nano-itx board.