Kindle
This Flash app allows you to soom through a long series of illustrations, looping one after the next. The effect is hypnotic and genuinely beautiful, like disappearing into a series of paintings.
Link
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.