HobbySpacer writes " Popular Science reports that Coleman Powermate will soon start selling a small portable fuel cell power supply. The AirGen Fuel Cell Generator provides 1.2kW for up to 10 hours on a bottle of pure hydrogen. Interestingly, the company had to set up its own distribution system to insure it could deliver a refill anyplace in the US within 2 days. The unit, built by Ballard, goes for a pricey $8k but perhaps worth it if an indoor emergency backup is needed. Fuel cells can also be found for sale at the Fuel Cell Store and Greenvolt. Perhaps the hydrogen economy is closer than most people thought."