This kit is different from other AR kits in that it enables what we call “Geo AR”. Where other toolkits place virtual things on top of specially printed tags, this tool
kit places information on top of real places in the world around you. It does this by tracking where you are and the direction you’re facing.
Geo AR apps are easy to write because all you need to provide is a collection of objects that have Latitudes and Longitudes. These can come from anywhere, for example a Bing restaurant search, a Flickr photo search or a Wikipedia article search. The framework then takes care of managing sensors and tracking where the user is in relation to the reference points. It can show where the points are in relation to user from a top-down perspective (on a map) or it can show where the points are as a virtual lens into the real world.