DMFC fuel cells will be backward compatible ??

just wondering if i buy a notebook before the end of 2007,

if the DMFC fuel cells rumored to be released at the end of

2007 will plug into many notebooks released way before

the end of 2007.

 

I think not -
"While technically viable, micro fuel cells won’t start stealing major market share from LiIon batteries in cell phones, PDAs, and notebook computers anytime soon. Part of the reason is the nature of fuel cells: they’re power generators, not batteries. They put out constant power, and most portable devices have variable power requirements. If your fuel cell is putting out 20 W when your notebook only needs 5 W, you’re wasting power."

"DMFCs produce water vapor as a byproduct-not something you want to introduce in an electronic device. They can also generate a fair amount of heat, another no-no. Active or reformer-type cells, while generating higher power than passive DMFCs, have noisy pumps and fans. DMFCs use exotic metals (usually platinum) as a catalyst, making them relatively expensive. And durability remains an issue in both active and passive cells. Finally, while the fuel-cell engine may be comparable in size to a battery, the fuel adds bulk, weight, and cost. Now that rechargeable batteries have all but replaced disposable ones in portable devices."

http://pd.pennnet.com/articles/Article_Display.cfm?ARTICLE_ID=245192&p=21