A couple of points that my post didn't address:
1. I'm considering using an ATI Remote Wonder for input if I can't get an in-dash VGA touch screen (if the DWW GA-700Y-Y isn't out by the time that I make my purchase).
2. I'd like the unit to automatically boot when the ignition is turned on and shut down when it is turned off. However, the only product that I've seen that tightly integrates with the motherboard to perform this function is the ITPS Auto Power Sequencer and Low Dropout Regulator. The Travla C134 doesn't seem to offer this feature, so I need a workaround (especially if the unit is installed in the back of the truck).
3. Even after reading the video FAQ in the newbie forum, I'm still confused about the quality that I can expect (or generate) using composite video. Will a high resolution LCD be sufficient (for passengers viewing MPEG video) if I'm using composite video? If composite video is blurry in front monitor, I realize that I can use a shell program like Digital Dash or Media Engine.