This is one of the most awesome things I have ever seen.
You can check the guy's website out here.
If you are one of those people who just don't care about video games, then think about it this way:
Let's say your parents/grandparents/whatever live in... Pennsylvania, and say that you live in Indiana. What if you could just put on your glasses, put in your ear-piece, and call them on the tv phone. Then if you walk around your room, your perspective will change. It will look 3d (even though it's not). It will be as if they are standing just on the other side of a window.
Think about if you are in the army, flying a plan... sitting at a desk. It could look exactly like you were in the cock-pit. I know we have technology now that lets you fly remotely, but it's not this realistic.
I'm sure there is stuff like this out there already, but this is the first time I've ever seen it. Plus, all this costs is about $400. That's it. You could feasibly set any of this stuff up for under 1 grand (you'd need two wii's, the glasses, 4 wiimotes, and some special camera rig for the tv phone).
This is just amazing...