A German company called Metaio is developing a new system that turns regular old books into reality-augmented 3D objects, with models of things like globes sprouting off of the pages. All you need to get it working is a webcam, the software and a book designed for the system and you’ll be checking out things like UFOs flying above your book.
https://www.youtube.com/watch?v=fK3Ld4riJGM
I’m not quite sure how many practical applications there are for this technology, but it’s pretty cool nonetheless. [Gadget Lab]