[mrbad101]

Wouldn't it be better if he was only holding a small 6" long stick, the kinect tracks that, and digitally adds the extended lightsaber? Maybe this was just his step 1.

It would minimize the destruction caused in your home from swinging around a 4' stick.

[collint]

Maybe you could use the wiimote in combination with the physical tracking to get more precise telemetry + precise physical location and AR.

[kreneskyp]

That was my thought a week ago. The kinect is limited in that it can only see the front of your body. Some movements obscure your body and it basically just freaks out.

[modeless]

You just described Playstation Move.

[NickPollard]

There have already been Playstation Move demos that do exactly this, with superb accuracy and great response times.

(Disclaimer: I work for SCEE, but this is my own opinion)

[ent]

The full length stick works better for duels. Filming cool duels is pretty much what this thing screams to be used for. Of course to minimize damage, you could probably use something lighter than a solid wooden stick.

[pyre]

Full-length duals have already been done, though. I don't think that is the killer application of this tech.