This was apparently announced last night and I missed it during the keynote. The website to go get this app is http://gettag.mobi – browse right to that site on your phone and the download is small and quick (200KB).
This is not unlike a barcode that identifies a product – except it is used to refer a consumer or visitor to another location, get directions, provide info on a website just by pointing your camera at the code and then it translates it into whatever info you wanted to share.
For a short test – download the application and use it to read this Tag:
You should end up at the mobile version of my website. Pretty slick huh? It is very fast – the shot does not even have to get focused on the camera and it is read and your heading towards the link.
Info from Microsoft on this (Microsoft TAG website):
What is Mobile Tagging?
Microsoft Tag creates unlimited possibilities for making interactive communications an instant, entertaining part of life. They transform 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!