Very nice piece of hardware and the possibility of running something different than windows is good.
The only thing missing is an included mobile phone :-)
It also has an infrared port so maybe it could be used as an remote control. Now that would be funny, programming some script to send commands and walk into a electronics shop :-D :-D
Amithlon would need drivers for the custom hardware in it (touchscreen, display drivers etc. ) but UAE should run i think.(it is using the windows drivers)
O2 xda with mobile phone . out now. is also a very nice piece of hardware. Unfortunatly running windows (pocketpc) only. but imho the virtual (touchscreen) keyboard makes it look much better.