[Killa_CRX]

I was watching the history channel the other day, and there was a show on about hybrid vehicles and fuel saving vehicles... and I saw something I thought was an interesting idea.
A guy had modified his Toyota Tundra V6 to run off both regular gasoline and hydrogen. The neat thing was, he was talking about modifications that he had to make to the engine to accept and burn the hydrogen... basically the only things he did was add an extra set of injectors for the hydrogen and then a distribution system for it (similar to a direct port nitros injection system), and also had to have the computer custom programed to recognise the extra fuel in the system and distribute and burn the fuel accordingly.
Now he said doing this increased the fuel economy from 28mpg (hwy miles) to almost 60mpg.... the only two questions I have in my mind were, how did this affect the over all power of his engine (gains, losses?), considering that hydrogen is less combustable than gasoline, and how much hydrogen was he using per mile (hydrogen is as yet NOT cheap)?
This all comes to mind, considering projected fuel price increases will be between $1.20 to $1.50 over the next year.

Anyone like to discuss this further?