Samsung Electro-Mechanics has developed a micro-fuel cell and hydrogen generator that runs on water, writes the Chosun Ilbo. Oh Yong-soo, vice president of Samsung Electro-Mechanics’ research centre, who said that when the handset is turned on, metal and water in the phone react to produce hydrogen gas. The gas is then supplied to the fuel cell where it reacts with oxygen in the air to generate power. Other fuel cells need methanol to produce hydrogen, while Samsung’s needs only water.
http://www.slashphone.com/in-2010-your-phone-might-be-powered-by-water-18226