As reported by Reuters, Microsoft sold 1 million units of Kinect in less than 2 weeks. Most likely Microsoft will sell even 5 million controllers by the end of the year The new device is a motion controller camera for the XBox 360.
Kinect was launched in North America on November 4, 2010. Kinect is a device based on software developed by Microsoft and range camera technology launched by Israeli developer PrimeSense. Kinect interprets 3D scene information from a continuously-projected infrared pattern.You can read more about Kinect on Wikipedia.