To use it, you simply have to have the ScanLife app installed on your phone (available from the digital lounge @ Sprint since November, and available on most other carriers too, I assume). Then a snap of the image with your camera phone is all it takes. One quick use would be if someone had printed out a post, or if someone secretly pinned only the EZcode on your bulletin board, you could pull out your device and be instantly connected to the blog, or given contact options, too.
Here's a larger version, in case your phone's image quality is too low for the smaller version:

I'm yet sure what options may be enabled in the future, but I think the contact and tips menu items will be likely targets in the near future.
Go ahead - cut it out and leave only the EZcode in random places around the Sprint Campus - I know you're dying to!