I got my hands on an OLPC XO last night. It's a curious, interesting, portable, fun tool. And if no one else borrows it tonight, I'll flash it and see if I can get the mesh working.
You can get your hands on an OLPC XO too and do a good deed at the same time. See: http://www.xogiving.org/
As Ron Popeil says, in general, "It makes a great gift!"
The One Laptop Per Child program tried to create a $100 laptop. It has created a very cutting edge $200 laptop and intends to put them in the hands of children all over the world. You can help by buying a couple (and keeping one of them.)