The project is a collaboration between Qosmo and Teradadesign. Any mobile device that can read QR codes can access shop information, but more in-depth content like tweets (located by GPS tagging), coupons, and reservations can be seen through a dedicated iPhone app that's available only by request.

Now this is a use of augmented reality I can really get behind: instead of cluttering up a building with billboards and sale signs, they're hidden within an aesthetically pleasing QR Code design. More of this! Please? [Creative Applications via Design Boom]