I remember just before the Wii was announced, there was a lot of buzz about Nintendo having put out a patent on some kind of 3D hologram technology. We all assumed at the time that it would be for the Wii, but maybe this is what they were planning for?
I'm glad if it doesn't require glasses, but I hope the games will not be unplayable for people who lack depth perception.
Edit: Fangire Queen, if it's like the video you posted, that would be pretty sweet.