Kindle
Wayan sez, "The $100 laptop is now shipping to Brazil and Argentina, and the OLPC developers are taking a fun break. They installed DOOM and have a video of themselves playing it on the OLPC XO!" Link (Thanks, Wayan!)
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.