http://www.youtube.com/watch?feature=pla...J5mpQqmZaM
cant remember exactly when it was aired, but it was at least 4 years ago
though that other method is certainly interesting and rather impressive
bit more research into it, the main blokey working on it is rich diver and they are working for sandia national laboratories, although its still a long time before this idea will come into any kind of commercial usage, but they have got a 5 year head start on that other team
only problem with these lovely new technologies is the time it takes to bring it to a point where its commercially viable, and alot of the time it wont be until fuel supplies begin to dwindle