Washington University in St. Louis has hooked a kid up to a video game... which he plays with his brain. This is so cool! The link includes a video of the kid playing the game.
While the whole thing seems frivolous and sci-fi-ish, it has a lot of implications for artificial limb construction. Imagine, after permanently losing a limb, to have a new one that responds to impulses from your brain, just like a natural arm or leg.