But then again...in the world of research, it also goes down to cost and the effectiveness of doing things. Just because the tech is already there doesn't mean it is easily available to all.

He also demonstrated the cheap hardware of wii can be exploited further to do interactive whiteboard and also minority report like interface (on his website) which is cheaper than most high end VR equipment put together on the market today.

That itself...is already a great step towards making such application more readily available to the general public and not just some rich guy with bundles of money. With the homebrew app on the wii just on the horizon...the possibilities are endless.