Collaborative annotation of the physical world?
via readwriteweb.com
GPS means the iPhone knows where it is. An internal compass means it knows where it is pointing. Any GIS tagged data in Wikipedia in the iPhone’s line of sight can be overlaid on the camera image. The Wikitude app then has a service that lets users annotate their current location.
RWW thinks “it doesn’t get much cooler than that”.
rWorld2 