This sounds like the next step in the evolution of a project I was loosely involved with back in 2002-3 while I was a student at the University of Central Florida. The long term project was known as "Earth Echoes". The idea of that research project was to discuss a future protocol for broadcasting useful location-specific information to wireless devices. We were kicking around ideas about what type of information people would want. Ideas included the background of historical hotspots in the area, the best restaurants within a few blocks, and directional data. This project was entirely hypothetical as the infrastructure for such a project did not exist.

The short term fruit of this project was an entirely different project called Cultural Byways - http://sfdm.ucf.edu/heritagealliance/byways.html Funded by the Lynx bus system, and with the help of the history center, the Digital Media department at UCF created a database of location specific, cultural/historical video clips to be displayed on the tv screens of the downtown Orlando loops of the Lynx bus system. The buses had just been equipped at the time with computers and GPS receivers. The 1-2 minute videos were stored on each bus' hard drive and triggered when the bus came within a set perimeter of each GPS location.