ReadwriteWeb writes:

 

"Microsoft applied for a patent on electromyography (EMG) controlled computing on Thursday, suggesting that a future smart wristwatch or armband might simply detect a user’s muscle movements and interpret them as gestures or commands. The “Wearable Electromyography-Based Controller” could also use a network of small sensors attached to the body, all communicating wirelessly with a central hub.

 

Microsoft first treated the human body as just another input device when it launched the Kinect sensor, which tracks a user’s face and body via an onboard camera. Computing via brainwaves has also been proposed as an alternative method of input. Finally, EMG-controlled devices, such as prosthetics, have been talked about for some time. Still, all three methods have their challenges.Comments

In the future, Microsoft apparently believes, people may simply twitch their fingers or arms to control a computer, game console or mobile device.

 

http://www.readwriteweb.com/archives/microsoft-tech-to-control-computers-with-a-flex-of-a-finger.php