A new motion control system that responds to body movements.
Kinect is the new name for Microsoft's Project Natal, which was announced at last year's E3.
Microsoft has said Kinect will hit shelves before the end of the year.
It will face competition from Sony's PlayStation Move controller and Nintendo's upgraded WiiMotion Plus.
Watch the Rory Cellan-Jones works up a sweat at the E3 gaming conference in Los Angeles, as he tries out the new E3! http://news.bbc.co.uk/2/hi/technology/10312850.stm
