No surprise, you hear about some undeveloped techs in the lab and want to decide for all of us that those are the solutions we must have. You are the one trying to shut down all the parallel alternative fuel development efforts in the world today.
Right now, people are trying to tear down ethanol, without understanding that many production plants are moving to switch grass and other cellulous sources.
Right now, people are trying to tear down hydrogen, without understanding that generation and compression techs are being demonstrated to show feasibility.
This is no different than those poo-pooing battery tech before Li-ion was demonstrated to provide significant efficiency gains for a hybrid vehicle.
Let all paths be explored, as new techs emerge everyday that make each alternative feasible for their respective market niches.