The Green Miles is on the Amtrak Regional heading back from Massachusetts, where I read about a new butane-fueled device charger being developed by a company north of Boston called Lilliputian Systems. They're expected to hit the market in 1-2 years and cost up to $200, plus up to $5 for refills of butane.
But Boston Globe technology columnist Scott Kirsner doesn't mention that there are already solar device chargers on the market ... and they're 1/7th the cost of this butane charger. The ReVIVE Solar ReStore (to pick just one well-reviewed solar device on Amazon) only costs $29. Plus you don't have to pay for charges - you can just leave it on your window sill or dashboard for free.
Lilliputian would likely counter that its device rescues people who can't/won't plan ahead enough to leave their charger in the sun, but all things being equal, wouldn't you rather think ahead a bit and keep the big pile of money?
In the wake of Hurricane Irene's power outages, I ordered a ReStore & it arrived just before I left for Massachusetts. I'll give it a trial run in the next few weeks & let you know how it works.