An anonymous reader writes
"A European research and development firm has announced a seven-ounce, wrist-worn wearable computer with a 2.2 x 2.8-inch color touchscreen. Eurotech's WWPC (wrist-worn PC) runs Linux or Windows, offers a wealth of standard PC interfaces (WLAN, Bluetooth, IrDA, USB, SD-card, etc), and has patented technology that puts the device to sleep when the user drops their arm. It can detect motionless user states, and serve as a location-transmitting beacon, thanks to a built-in GPS receiver and 'dead reckoning' technology. The company also claims six hours of battery life under 'fully operational' conditions."