mmmmm ...lightsabers :)

The first thing I thought was wouldn't it be a little hard to control... You would keep swinging past where your lightsaber has actually stopped when it contacted the other one on the screen...

If you see what I mean? The position of your controller and the lightsaber on screen would keep getting out of sync.

Hmm. Unless it's the final secret in the Revo bag, the controller doesn't provide the tactile feedback needed to make the swordplay shown in this video a reality

I don't mean rumbly, twitchy, spastic feedback - I mean stop-the-controller-dead-and-make-it-impossible-to-move-it-any-further feedback. Without it, you've swords passing through one another.

Without that, I'd rather continue using sticks and self-made buzzy swooshing noises.

You would get used to it the same way as you do with Eye Toy games. If the motion tracking is accurate enough then you react to what's happening onscreen, not the feel through the controller.