With the Kinect SDK, the door is now wide open for the development of applications which use natural user interfaces. Initial efforts by developers to hack the Kinect resulted in applications which allowed painting 3D images in mid-air, and others which tethered the Kinect's motion controls to a functioning robot.
The topic was discussed by Microsofts director of incubation for Xbox, Alex Kipman, in 2010. He stated that "Hacking would mean that someone got to our algorithms that sit on the side of the Xbox and was able to actually use them, which hasnt happened. What has happened is someone wrote an open-source driver for PCs that essentially opens the USB connection, which we didnt protect by design, and reads the inputs from the sensor."