Canon shows prototype hydrogen fuel cell

"Canon Inc. unveiled on Wednesday a prototype hydrogen fuel cell it has developed to power portable electronics products such as digital still cameras. With its development work Canon, like several other portable gadget makers, is looking into fuel-cell technology as a possible replacement for the rechargeable batteries that power many devices today. Fuel cells hold the promise of providing more power for their size than a comparable battery, can be recharged almost instantaneously and are said to be more environmentally friendly." Source: itworld.com