I've been doing some work over the summer on the use of Augmented Reality in teaching and learning. Part of that has been looking at the possibilities associated with the growing number of social networking sites devoted to location tagging using smart phones. Here are some examples of what I mean.
Layar lets me choose layers created by sponsors to find information related to my geographic location. Like most of the tagging applications the results are overlaid on to a camera image and as I move the camera so the results change to reflect my new position. This is good, but the exciting part for me is being able to create my own layar and share my own tagged locations with others. Using Layar's Message Central I can select a 3D object, attach it to a location and include a message. When another user is within range they will be able to see my messages. Something for organisations to think about - perhaps a simple way of publicising an event at their campus, or giving short information to visitors.
Another application,
Junaio, does something very similar. But this time I can attach a photograph, weblink and message to the selected object and location. This makes the message more useful in making links to appropriate websites, Junaio say that the application now works on Nokia Symbian devices, Android devices and iPhones.
But the application that is really exciting for me is
Toozla. Rather than attach a written message to an object, this application lets me record a short audio message and tag it directly to my current location. Now I can reflect on what I see around me. Geographers, historians and enviromental studies people take note. This is really cool! Toozla is available for an even larger range of smart phones than Junaio - see the full supported list
here.