] Tokyo--Toshiba Corporation today announced the
] world's first prototype of a small form factor
] direct methanol fuel cell (DMFC) for portable PCs, a
] clean energy breakthrough with the potential to end
] reliance on rechargeable batteries. The new fuel cell
] currently realizes average output of 12W and maximum
] output of 20W, and can achieve approximately five hours
] of operation with a single cartridge of fuel. It provides
] instant power supply, and achieves significant advances
] in operating times with replaceable methanol cartridges.

This thing is a little large, but its a step in the right direction. Ultimately I see these things enabling more home robotics. Power consumption is one of the most challenging thing about effective household automation.

Toshiba announces laptop fuel cell.