Over 2.5 million Kinect sensors had been sold as of November 29, 2010, with no signs of letting up. With an integrated camera and a microphone, and connecting to the Xbox 360 via USB, the Kinect sensor is much more capable of being modified and implemented successfully than Wiimote.
The virtual Kinect piano can be scaled as large or small as the user defines, and opens up many possibilities for fun and recreation.