What? You haven't tried Plane Weaver yet? Er... well, my review is coming tomorrow, but I thought I'd post the walkthrough for this PAX 10 winner first, as the game can be a bit tricky in a few spots. Anyway, the game is a really cool platformer with puzzle and adventure elements, excellent graphics and sound all done by a small group of Danish students in a month. Go download it (click on the link above - it's free and only around 66MB), install and play it and when you get stuck (it'll happen eventually), watch this video and thank me later.
Yes, this does indeed contains spoilers (well, it IS a video of someone playing the game!).