I was wondering if anyone has tried to use the <a href="http://www.aquapad.org">aquapad</a> as an MP3 player/GPS in dash. It comes with Linux, CE, or Windows and an 8.4" touchscreen available in 150 or 230 nits brightness. It uses a 500MHz Transmeta CPU which should be powerful enough for those functions, and even for playing back video. This is the lowest cost webpad I've found at $899, so I'm tempted to try it out.