There's some French guy that uses a wing suit, sometimes known as a bat suit, if I recall correctly, in conjunction with jet packs that he straps onto his feet!
I agree, those wing suits are really cool. On an episode of Top Gear, the younger guy races in a....Land Rover--was it?--against a guy in a wing suit (jumping from an airplane or helicopter (geez, I just saw the show last month, and I can't even remember.)) The bat suit guy won, but it was close.
Edit....and after just now watching the video, I've got to say....SICK! Totally, friggin' awesome! Those guys are awesome. Their level of control is unbelievable.
On Top Gear, I remember the guy saying that they these suits were modeled after flying squirrels.
Here's something similar, but instead of a wing suit, the guy's actually got a wing strapped to his back--a jet powered wing! Pretty crazy, check it out:
http://www.gadgetizer.com/2007/01/07/human-jet-pack-the-ultimate-thrill-ride/