The Dragonaut is a student project from the Parsons Making Wireless Toys class, created by Kan Yang Li -- it's a cardboard robot that uses an Arduino kit to give him life: "after you use a key to start him up, his arms raise and lower to proclaim 'awesome!'" Link (via Craft)
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.