Invisibility Cloak

This has got to be seen to be believed. I've covered it before at my old website. And my stupid co-worker, the blachino, took awhile to understand what was going on (he totally aspires to be a ninja when he grows up).
Your wear this article of clothing and basically, you are invisible. Objects behind you can be seen through you. I can't wait till its out of prototype and actually wearable, but I doubt it will ever be available to typical peon civilians like me.
Check out this video of the cloak in action. (requires QT)
Invisibility Cloak You'll Never See (via Gizmodo)