If you ever looked at a slab of plywood and thought, “I’d love a phone that resembled this,” Japan’s KDDI has you in mind. Designed by Hideo Kanbara, the conceptual “Ply” would put a different function in each of its six super-thin layers. On the top one, the display; in the next, a keypad; in a third, a printer. It would even crack open to reveal a miniature projector!

Plywood works as a display, a printer, a keypad and a projector: [via]