We've seen quite a few prototype fuel-cell powered mobile devices, but Samsung's upping the ante by predicting that we'll all be running our phones on water by 2010. The company says it's developed a method to generate hydrogen by exposing water to metal, but the details are a little shaky -- we're guessing it's similar to the system used in the HydroPak generator, but it's hard to tell. Still, we've got no reason to doubt Samsung's engineers, who say the system currently provides about 10 hours of use, or about five days of average cell usage, and will eventually allow users to simply top off and go. That's every traveler's dream -- let's get this to market, Sammy.

We've seen our fair share of diminutive power generators, but rather than worrying with vibrations or hyperventilating, Millennium Cell and Horizon Fuel Cell have teamed up to deliver an iteration that's water-activated. The pair has been working together on this technology for some time now, and apparently, it's readying a beta that will be demonstrated at next year's CES. The portable power generator incorporates a "unique water-activated cartridge system," which is designed to quietly provide clean energy to consumer products in emergencies and when far, far away from an electrical outlet. Reportedly, the device will provide an AC socket alongside two USB connectors, an operating time of over 16-hours, infinite shelf-storage life and 400-watts of instant juice by just adding H2O. Regrettably, we still have no idea what this thing actually looks like, but considering that CES is less than two months away, we'll soon be seeing what this $400 gizmo can do up close and in person.