A California start-up has made an advance that it says stands to make Direct Methanol Fuel Cells--envisaged as a future power source for mobile electronics devices--smaller, cheaper, and lighter.

PolyFuel's development of a new Direct Methanol Fuel Cell (or DMFC) membrane comes as several of the world's largest electronics companies are developing fuel cells with a view to commercializing them later this year or next year.

Read more: PC World.