Until last night, I had never played World of Goo and it's FREAKING AWESOME! I downloaded the STEAM demo, which I thought to look for only after completing the Braid PC demo, which is a really good game, but the fact it only supports a 360 gamepad on the PC, is reason enough for me not to buy it until they remedy that flaw.
This game is probably easier played with a mouse, even though the Wiimote is good for pointing, but now I'm torn about which system I should buy it for, since there's even a Mac version... DAMMIT!!!