I have one question, though. What purpose would an accelerometer have in the Kinect? Perhaps it was put in there being forward thinking (for future use), but I can't come up with anything more useful than being able to sense if were mounted upside to flip the camera image. This alone would be accomplished at a lower cost by using a simple switch, like the sensor inside the 360 itself. Anyone have an idea for a use of this?
The accelerometer is used to detect orientation. The sensor auto-rotates video capture streams so that 'down' in the image is gravitational down, even if the sensor is on a surface that is not horizontally parallel to the ground.