Methanol-based fuel cells would be AWESOME. For the ignorant few, Methanol = Rubbing Alcohol, which costs about $0.79 for a quart of 91% strength. Make it anhydrous with desiccant (I believe calcium chloride would work - sold as ice melter, $8 for a 50lb bag, which would be practically a lifetime supply), and you've got practically free fuel cell refills. 
I can't wait to hack these things.

FYI Fuel Cell Mfgr:

http://www.viaspace.com/viaspace_energy.php

Click...

Booom!

HaHaHa!

I kill you!

"It will be sold as a charging system pack for between $100 and $150 with refill cartridges costing $1 to $3."

I know it on reliable account that HP is introducing it's own system.

The pack will sell for between $1 and $3 with refill cartridges costing $100 to $150. HP will use a special chip in the cartridges for customer convenience, which will prevent use after the expiry date. Hacking the cartridge will require breaking the law (DMCA protection).

The ink of modern times... Enjoy!

You'll be able to light your cigarette, or fag if you're British, with your laptop.

Makes me wonder how expensive the chip is. And since the reaction probably doesn't make noise, maybe they'll start selling kits for when the lights go out. Also, you'll be able to watch dvds and play games while you're out in the boonies. Not immediately, obviously, but I feel it's just a matter of time.

Makes me wonder how the reaction works.