We see this every time there's a sharp increase at the pump price of gasoline - someone ELSE "discovers" that you can hydrolyze water into its component parts, nydrogen and oxygen (in a reaction which anyone with a battery can re-create), which can then be used to run an automobile. They can call it "Brown's Gas" or "HHO gas" but what it is, is an intimate mixture of hydrogen and oxygen from electrolysis of water. Nothing new or usable here.

The problem is that you use more energy to separate the water into its component parts, collect the oxygen and hydrogen, then burn them in a car engine than it takes simply to run your car on gasoline. The technology is as old as the hills and requires plenty of outside energy to work - too much to even remotely resemble an "energy-saving technology."

John McCain has a good point - battery technology is the key to replacing crude oil. As the price of crude oil goes up and up, it'll pay us to be able to charge our cars overnight from house current IF we can put efficient enough batteries in our cars.