Check this out: A flashlight that will run for 5 hours on 10 hours of solar charging.
There's an article in today's NYTimes about it as well, which you can find here.
Also neat is the "Buy One: Give One" strategy the company is taking; for $25 you can get one for yourself, as well as sending one to Africa (albeit through US charities, but it still seems like an innovative solution to me).
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