Cool. Id love to see more specs.
Running Google Earth, the handwriting recognition is an interesting idea that would be very doable in the CarPC hobbyist community!!
EWF, HORM, MinLogon on XP.
Zotac ION Atom N330, 2GB low-profile RAM, M3-ATX
Win Embedded Std 2011 RC
OCZ Vertex Turbo 30GB SSD
Lilliput 629 Transflective, WRX Screen Mount
BlueSoleil BT, i-Blue GM-2 GPS, DirectedHD Radio, Andrea Mic
Shouldn't be to hard to implement in a plugin since gesture recognition is already in place.
Failure is not an option...
The only full multizone / multiscreen cross platform open source Front End -> OpenMobile