Microsoft Tag creates unlimited possibilities for making interactive communications an instant, entertaining part of life. They tranform physical media (print advertising, billboards,product packages, information signs, in-store merchandising, or even video images)—into live links for accessing information and entertainment online.
With the Microsoft Tag application, just aim your camera phone at a Tag and instantly access mobile content, videos, music, contact information, maps, social networks, promotions, and more. Nothing to type, no browsers to launch!
That's remarkably similar to the QR Code functionality that's embedded in every Japanese mobile phone.
This is a great technology if you can get it universally acceptable to all your mobile phones. I use it in Japan all the time. We have QR Codes on everything from business cards to the sushi in the supermarket.