There's a curious meme on the web today: how to clean your MacBook effectively. Over at MacApper, Josh Holloway has apparently discovered (via InsanelyMac) that the Mr. Clean Magic Eraser is the key to black Mac nirvana. And in an apparently unrelated post over at the FreeMacBlog Brian Stucki has determined that the white MacBook needs the tender loving care of Glass Plus Wipes. So there you have it: bridging the gap between black and white is a nice clean MacBook.
Update: I suppose it's worth saying: use this information at your own risk. It is a good idea to test any cleaning product on the (replaceable) battery before using it on the entire computer.