The Gigabyte M528 MID is a touch screen with a size wide enough at 4.8 inches and a screen resolution of 800×480 pixels.

Gigabyte M528 MID

Intel Atom CPU, 800MHz Menlow chip
WiFi 802.11b/g
512MB of RAM
4GB SSD
GPS
HSDPA/3G via USB port
Bluetooth 2.0
0.3 MP frontfacing webcam
3 MP autofocus camera

$700 in the US