That's interesting that the videos have two images side-by-side when the they're embedded in this page, but they're red-green overlaid when I watch them on youtube.com...
When they're side-by-side, you can cross your eyes (like the old Magic Eye books) to watch them in color-correct 3D, which is pretty cool. I've tried to get friends to try it with other side-by-side 3D images and it never seems to work with anyone else...
I wonder if any drivers'll ever come out that will let us play games cross-eyed... I know I'd try it at least once.