Kindle
Groovy sci-fi USB peripheral for your laptop. A clip on, eerie-blue reading lamp that plugs into your USB and draws minimal juice off your laptop. PDF link (Thanks, Joey!)
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.