Skinput

Microsoft is innovating even further with the demonstration of Skinput interface. They've developed an armband that can sense sound waves echoing inside the cavities and on the skin of the human arm. Using this technology, a user can simply tap their arm in the correct location and input is received. Alternatively, the user can squeeze two fingers together, or make a fist. The video demonstration even uses pico projectors to give a more usable interface to the user and to even show the output of the actions.

This would be a fantastic interface to incorporate into our GALLAG scenario of Participation TV. An armband that could be worn and then used to mix video and record would clearly be seen as a toy/game concept by users if presented as a polished product. The interface itself would be a really awesome addition to changing the way people think about documentation. Rather than any sort of clunky user interface, anyone can learn to tap their arm in the right place with a projector showing a button.