Ink & Switch's PlayBook turns paper notebooks into programmable devices
PlayBook: A Programmable Paper Notebook [video]
Ink & Switch has unveiled PlayBook, a programmable paper notebook that blends physical pages with digital interactivity. A Hacker News commenter calls it one of the coolest demos from the lab in a while, though notes the published live demo omits several demos shown in the talk and leaves unclear how users can build their own, making deeper evaluation difficult.
One of the coolest demos I've seen out of Ink N' Switch in while (tbh, it's seemed like they were really cooking for the year or so).