Kindle
If you tilt a sealed, new Pepsi bottle at 25 degrees and squint at the underside of the cap, you can tell whether it's a winning free-iTunes-track bottle or a try-again bottle.
Link
(via Futurismic)
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.