Water as Fuel?

Here is a video of a cool technology that turns water into a flame that can burn through many metals.

Some of the prominent characteristic and unique properties thought to be achieved are: no oxidation of the weld; no heat slag; no weld joint inclusions; ability to weld dissimilar materials (i.e. glass to steel, etc.); and a self-adjusting inner-face temperature depending on the substrate being worked ranging to well beyond 10,000° F.

A company called Hydrogen Technology Applications and is now supposedly working with one American car maker and the US government.

Modified: I added a bit more emphasis on doubt.