I blogged about a recent demonstration in which John Kanzius, a florida inventor used radio waves to
burn salt water. Judging by the related patents what's happening is that radio waves immitate the radio frequency of platinum--which is the industrial catalyst used in hydrogen steam reformation. steam reformation involves the catalyst platinum heat & pressure. The radio waves fool the water into thinking the catalyst water is nearby. With enough heat you can do without the pressure. The radio waves first destablize the H2O bonds and then the radio waves are absorbed by the Na ions in the saltwater. The Na acts as a heat sink just as any metal would in a microwave. The enormous heat generated by the Na ions finally break off the H2 from the O.
A spark then starts a fire only its an electrical fire as the Na now serves an electrolyte. Kanzius has said that subsequent experiments have shown that the fire persists 3 seconds after the radio waves have been turned off. Two seperate experiments have said that the process --unlike electrolysis--creates more energy than it consumes.
I cant say that I'm a chemist/scientist. So I would like someone to look at the available evidence and hazard an opinion... someone who made their living doing related stuff.