Interact with the iPad as you flip a physical book!

I'm totally impressed with this! Put the book next to the iPad, launch the accompanying app, then flip the book and watch the iPad screen change to the corresponding scene which the reader can touch the iPad for further interaction! You'll have to watch the video below to fully appreciate this stuff.

Best of all, it's as simple as magnets on the book working with the iPad's built in compass.

via Cult of Mac.