The USB spec doesn't have any say in the data that gets sent back and forth once a connection is established. That's what makes it versatile. So, yes, the Kine

The USB spec doesn't have any say in the data that gets sent back and forth once a connection is established. That's what makes it versatile. So, yes, the Kinect could have been totally USB-compliant device while requiring a "driver" with juicy gobs of encryption and obfuscation.