Hoooooly crap this is the best thing ever. Your swap partner is the luckiest person in the world. I tried out knitting once upon a time but just found it too frustrating for me, especially multiple colors. This project almost makes me want to pick it up again so I could make some socks like this (it rarely gets cold enough for mittens in TX, you see, but my feet are always cold) however I know I don't have the patience to take on yet another hobby and get good enough to make something this awesome.
So that, coupled with the fact that I saw these first in Nintendo Power, makes me think you're super awesome.
PS sorry for the thread necromancy, but it was a fairly fresh corpse and this project didn't get enough love the first time.