Here the details of the 'TrimSlice' ultra micro mini tiny small PC by CompuLab:
NVIDIA Tegra 2 dual core ARM Cortex A9 1 GHz with integrated ultra low power GeForce GPU (very low energy consumption) 1 GB DDR2-800 RAM ATA SSD (up to 64 GB) WiFi 802.11n* + BT DMI 1.3 full HD + DVI (dual head) Stereo line out, line-in, 5.1 digital S / PDIFAusserdem he has four USB ports and a serial port, per a card slot for regular SD and micro SD cards. The computer comes in a solid metal housing, requires no fan and only 3 Watts - so just times as much energy as you create with a medium-difficulty sneezing.
TrimSlice comes this April in the shops and should be more affordable than a Tablet PC.