Lol, pretty old, but extremely awesome! I heard about the game quite a long time ago and it's also one of the IGF contenders... Hehehe, don't people here read sites like www.gametunnel.com or www.tigsource.com and so on? Comes highly recommended!

For more cool physics games be sure to check out www.fun-motion.com, it sort of reviews these types of (experimental) physics games.

Cheers