This is the same thing as the xda2, the imate. Look at the price $906 usd! Thats a hell of alot more than a new ipaq 5555 and a camera phone. (if you look for a discount)
If you dont like gsm, try cdma (sprint, verizon), or iden (nextel). Cdma will give you 70-112k internet speed. You can get ppc hpone editions from them. (samsung i700 w/ camera for example)
here it is:
http://www.expansys-usa.com/product.asp?code=108654