Lithium Ion a dead end?
This news from Advanced Technology talks about two different start ups chasing fuel cells for laptop computers. (Note to Tim Oren: May be a worthy stock tip if they go public.) My understanding is that the current top dog Lithium Ion has reached maximum density, and the fuel cell route promises 12-14 hours which would outgun what is available in the current market. Fuel cells for Handdhelds or Cell phones don't sound too probable though do to fuel cell size.