"On Friday, Sony plans to unveil their newest portable  fuel-cell technology, "The system contains both a methanol fuel cell and a Li-on  battery" and can "intelligently switch between power from the battery, fuel, or  even both under high-draw circumstances." Sony intends to show off two models  claimed to power your cell for a week or a month,  respectively, as well as the latest developments with their sugar-batteries that can now run purely off your  favorite cola beverage. This model builds on Sony's 2008 model,  their first commercially-demonstratable prototype, and could make waves with  Sony's OLED devices Read more of this story at Slashdot.