Yet another guy who thinks the laws of physics don't apply to him.
Don't get too excited about this. The energy liberated by \"burning\" the hydrogen gas is equal to the energy required to separate the hydrogen from water. I'd like to see the big cable that powers that box that does the dissociation. No doubt it is at least 240V. What it means is you will have a MASSIVE electrical bill and no gasoline bill. The only benefit is if the cost of energy from electricity is cheaper than the cost of energy from gasoline.