There's been quite a bit of buzz about this lately: OLPC, or One Laptop Per Child.
And what a laptop the XO is! I'm thinking about jettisonning mine and getting one of these.
It's a rugged, innovative $100 computer. And for some reason, for only two weeks in November (the 12th through the 26th), you can buy one and one gets given to a child in a third-world country. For only $400. Now, I don't quite get the math on this, but it's still a steal, even at $400.
The laptop has a solar cell which can be recharged many times, and a sealed keyboard (the CPU is in the screen) which can withstand dirt and water.
It has a mesh network which allows it to communicate with other XO's in the area, even if it's not on the internet.
I don't understand the technological aspects, so you should watch the video below to see the New York Times' David Pogue's lighthearted review and drop test of the XO.
Then consider getting one for a child you know, knowing you are also giving it to a child who needs it more.
Thanks to Stryder for the link.