I finally found the video of that jumping dude. Get a load of this, if you haven't already.
UPDATE: In the comments to this post, Richardson leaves a link to more of this sort of fantastic jumping and climbing. The "sport"-- if it can be called that-- is known as "Parkour," from the French "parcours," a word with several meanings, including "run-by." The object of the game in Parkour is to keep moving. Anything that crosses your path as an obstacle must be dealt with in a smooth motion; there is no stopping and considering how to cope.
A great place to read about Parkour is the official English-language website for a French movie called "District B13," a near-future dysto-pic about a Paris that has responded to the urban chaos by literally walling in the various gangs, leaving them to fend for themselves. The film features two cops, one of whom is a Vin Diesel clone, the other of whom is a Parkour expert. As you might guess, they team up and kick some ass in the ganglands. Visit the "District B13" site here.
Parkour is exhilarating to watch. To me, it looks like a spinoff of the stuff Jackie Chan has been doing for years. Buster Keaton, whose stuntwork and physical comedy arguably make him the cinematic godfather of Parkour, must be smiling in heaven.
I think Parkour would be a far more interesting Olympic sport than, say, freestyle snowboarding. What does Chan thinks about all this? Has anyone asked him?