Speaking of solar lights - have you seen the Bogo Light? It's a LED solar powered flashlight with a twist. You may have heard of a BoGo sale meaning Buy One Get One, however in this case BoGo stands for Buy One Give One. The company is donating one flashlight to charity for every light purchased. Turns out these flashlights can make a big difference in third world countries, where kerosene lanterns are used for lighting. Replacing 52 kerosene lanterns, BogoLight estimates reduces green house gases the equivalent of one automobile in the US.
From what I hear the flashlights are also very well designed and work really well. It fits nicely in the hand, and also lights up a wider area than typical flashlights.
Here's a clip from the BlogLight Blog:
We have started passing out our traveling BoGo lights - the light has a tag which explains the program, and then asks the recipient to use it for a couple of days, then pass it on to a friend. Each light is numbered and has a code, so people will shortly be able to log on and provide their generic location and their comments.