How is this better, again? (Score 1)

Now I'm going to have to carry a fuel around with me. I just don't understand how that's better than the current solution. Most fuels are not renewable and are quite volatile, where as batteries, in most cases, are rechargeable and are very stable. Even if the fuel is hydrogen where does the water (a bi-product of hydrogren combustion) go? Not to mention refueling a hydrogen fuel cell is not the easiest procedure. Granted the idea is pretty cool, but the last thing I want to have to do it stop, refuel my PDA and then pull start it to get it going again.