Dean:
We have found that the .net for CE is somewhat of a subset of XP. We had to be very careful in writing the .net to make sure it runs on CE. Generally, if it runs on CE, it runs on XP.
We will not have any development systems until our first production arrives around April 1.
The Elk Touchscreen is running Windows CE 5.0 and .net 2.0 so all development needs to done with those versons of CE.
You have Ethernet, RS-232, AC97 mic and speaker, Compact Flash card socket for memory expansion ( you probably will need it), and a full version of Windows CE with Ethernet browser to work with.
Power over Ethernet or 12VDC from a rear plug to power the system. Current draw is less than 1 amp when back light is full on. Backlight is controllable.
TFT LCD display, 800 pixels wide X 480 pixels tall, 7 inches diagonal.
The Windows CE supports Remote Display of a PC's video screen for remote control of the PC from the Touchscreen.
Make all user interface buttons big so the user does not have to use a stylus to control things.
I am working on more interface information and will distribute it when it is ready.
Edited to say Windows CE 5.0 and .net 2.0