These are some projects that have been done within Andy Lippman's group at the MIT Media Lab which use VRCodes
Newsflash shows a large display of screens which can be used in a public environment. Users can point their phone at a screen to get more data from the frontpages in front of them. [description]
Audio Line of Sight uses a pair of headphones with a camera on top to allow a viewer to "hear" only the soundtrack associated with the video stream.