This isn’t quite exactly what I pictured for a wrist computer, but it’s a start I suppose. It looks more like a blood pressure machine that you’d see at Wal-Mart. The Zypad WR1100 is a 23 ounce, rugged, wireless computer operating with a Linux OS. It features a 640X480 touch screen that is water, dust and shock resistant, as well as being clearly readable in direct sunlight.

Other features include “802.11 and Bluetooth/Zigbee interfaces, a GPS receiver, electronic compass, biometric fingerprint sensor, and a tilt and dead reckoning system that detects the position of the user’s arm and sets the system to standby mode when the arm is hanging down beside the body.”

Despite its lightweight design, I can’t imagine this 4.5 x 3.5 x 3 inch thing on my tiny wrists. Good thing the WR1100 was built just for military use, because I couldn’t think of any other reason to have one. Maybe for exploring or hiking, but a small GPS would suffice there.