No inventive step here. Sadly, patent office examiners are monkeys that allow most patents to fly through unless someone contests them after publication.
[citation][nom]Distinct[/nom]If anything it looks like an upside down paw of a land mammal, such as a deer.[/citation]
Some people have a lucky rabbit's foot.
M$ has a "One hoof to rule them all" deer appendage.
Kinect sensor can't track the hand movements well and lacks any sort of trigger for fps games. If they want to integrate the more hard core games with the kinect they need something like this and with kinect hitting the PC soon this looks like the perfect companion device. The future is about different type of inputs get out of the old way of thinking.