here's my install, mostly done, now in the "tweaking" stage.

close-up of lilliput 629

case and relocated climate controls, preliminary install powered by inverter, have since cleaned up with carnetix cnx-p1260

keyboard in visor, still need to work on cleaning this up a bit (obviously)

requisite ride shot
Hardware:
VIA EPIA M10000
256MB RAM
40gig HDD
DVD-rom
Travla C134 case
Lilliput 629 7" trouchscreen VGA monitor
Carnetix cnx-p1260
Holux GM-210 USB GPS receiver
Fellowes Touchpad PS/2
Mini "travel" keyboard PS/2
Bluetooth USB dongle
Sony-Ericsson T-616 with Cingular MediaNet unlimited plan
Pioneer DEH-P8600MP with CD-RB10 and CD-IB100 bus adapters
Ipod Photo 30gig
Inifinity 4" 2-ways
Kicker 5.25" midranges
Audiobahn AWT10X 10" sub
Audiobahn A4002-T amp for midranges
Rockford Fosgate RF-X6 amp for sub
Software:
WinXP Pro
DeLorme Streetatlas 2005
Roadrunner FrontEnd (for now)
Phone Control
Itunes
Firefox
Install:
Carnetix PSU/SSC provides juice to the case and all internals. The Lilliput is powered directly from the car's switched +12v, by just cutting off the cigarette lighter plug and splicing it in. On this Audi, there is no ACC position for the ignition, but the car does provide power to the "doorchime" until the key is actually removed, so that is how I have my carnetix/lilliput/headunit hooked up.
Lemme know what you think,
Jonas
PS for comparison check out this nice intstall in a S2 (same body).
Audi S2 install