Other than the xpPhone, here is another mobile phone running Windows XP OS, the ViewSonic VPC08. ViewSonic’s new device comes in clamshell style and includes a 4.3-inch touchscreen and QWERTY keyboard inside.
Outside you can find a 2-inch LCD display, a 2 Megapixel camera, and number keys. The VCP08 is boosted by Intel’s Ultra Low Voltage processor, 512MB RAM and 8GB flash memory.