Kindle
Check out this amazing, functional Mac classic retrofitted to be driven by a 1923 Underwood manual typewriter:
Link Discuss (Thanks, Justin!)
Most of the computer keys are in roughly the same place as the corresponding typewriter keys, so connecting them was a fairly straightforward process. But a 1923 Underwood typewriter has no "enter" key, no "option" key, etc., so some connections were harder to make. The silver rod running along the top of the typewriter runs from the chrome return lever on the left to a cam on the right, which rotates and pushes down on another rod which is connected to the computer "return" key hidden beneath the console.
Link Discuss (Thanks, Justin!)
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.