Prototype Microsoft keyboard recognizes hand gestures

• The idea is to offer more functionality then a regular mouse and keyboard
• Microsoft has created a keyboard that can recognize your hand jesters.
• The Type-Hover-Swipe keyboard features a 16 x 4 array of infrared proximity sensors embedded in a printed circuit board
• Each sensor peeks out between the keys, tracking your unique hand movement.
•  it operates at high frame rates above 300 hertz.

Here