Senseboard -- keyboardless keyboard

Slashdot pointed to Senseboard Virtual Keyboard, a strange device taken out of the VR world and into mainstream computer interaction. Senseboard VK is typically used together with a PDA, a Smart Phone or a Wearable Computer with a Head Mounted Display. The VK hand mounted devices allow the user to type on any surface as if it were a keyboard. Sensors in the units measure the finger movements and artificial intelligence and a language processor determine appropriate keystrokes or mouse movements. Senseboard VK communicates by radio or wire with the PDA, Smart Phone or Wearable Computer.