Wikitude is one of the many emerging AR apps that layer virtual data on top of the image from the camera. Using the accelerometer within the device combined with the gps, this app detects where you are and where your facing and displays points of interest nearby. Very similar to Layar but the beauty of this is that the content can be user generated via wikitude.me. Sets of waypoints (known as worlds) can be created in google earth and then the saved .kml file can be uploaded with an icon. I have created a world called Hampton Court Palace 2010
and will be tried out my year 4s on 31st March.