Much hyped as a theoretical development, there is now an App you can purchase from the App store which has this embedded. It is the Paris Metro app and if you switch the camera on and hold it up, the nearest stations and the direction and distance from you, are displayed on the screen. Itwill also show you where the nearest Starbucks and MacDonalds are located in the same way. It is described (in French) in this YouTube snip and is well worth watching. I came up with 50 possible uses for this technology in the 4 minutes it was running. And, guess what, not one of those featured Starbucks or MacDonalds. Should give most of you at least one ‘Ah Ha’ moment!