Tonchidot is a piece of software for the iPhone, which allows users to capture and tag the real world. The user takes a picture of a a physical thing – be it a building, landmark, sculpture, place etc. They can then create an audio or written note to accompany that image. Other users can pick up the audio or written content if they later swing by and point their camera at the same location or thing.

You could, for example, point your iPhone at a restaurant to receive a review from another user or maybe at a bus stop to receive information about the next service. Its a very clever way to integrate the real world with the Web. Check it out…