ARM SBC's: Embedded Linux Single Board Computers. Great connector layouts and form factors. 3.5" LCDs mount directly on 10x10cm boards like Mini2440 and Mini2451. 4.3" mount on 11x11cm like Mini210SBE. 400MHz ARM9 to 1GHz Cortex A8 and 1.4 GHz Quad Cortex A9.
Mini2440 Mini6410 Mini210S Mini2451