Those who know me, know that I've worked in the Hydrogen business for a while, untill it bored me to death... What I've seen is that fuel cell technology and the hydrogen technology is far from ready for mass production, and isn't even a real ecological solution just yet. To many energy is needed to first make the hydrogen that's needed to make energy again. Plus you are waisting a lot of valuable drinking water. So the technology still needs improvement, but it will get there once these issues are solved.
But if you are a strong believer and you can't wait to drive a real car with fuell cells? Then you must try out this kids experiment kit, a hands-on way to discover fuel cells. The kit is basically a car that uses solar power and a fuel cell to separate water into hydrogen and oxygen by electrolysis, and then runs on the resulting energy. Order your own for just $150 at hammacher.com
UPDATE: So the future of fuell cells is here after all. The Bloombox by Bloomenergy is a fuellcell that fits in a small shoebox but can power a complete house. This new type of fuell cell developed by K.R. Sridhar use biogas and air to create electricity, and is much cleaner and cheaper then normal energy. Bloomenergy just went public and already has big companies like Fed-ex, Wallmart, E-bay or Google testing it. See the video below. (Yes I'm a technology nerd sometimes. I know)