I expect to see Apple jump to the forefront on Fuel Cells. The Liquid Metal patent they now own, sounds almost ideal for use in Fuel Cells. The metal has to be very corrosion resistant, capable of handling high temperatures, and very conductive (Liquid Metal is ideal).
I expect Apple to release a Fuel Cell powered product in the next year. Imagine an iPod that can run for a day or two off a tablespoon of water.
Intel has bought a company with a fuel cell product ready to go to market which will use butane to power the fuel cell recharging device. Hopefully, one of those will soon be replacing the rats nest of cables I lug around!