Page last updated at 09:09 GMT, Tuesday, 11 August 2009 10:09 UK

Tagging the world on a phone

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Tokyo-based developers Tonchidot have created a way that allows phone users to write information about objects viewed through a phone's camera.

The Sekai camera calculates your position using GPS and images, then displays information graphically on top of your real-world view.

The company has released a demonstration of a prototype version being tested on an iPhone at a Paris science museum.

Augmented reality systems such as this are in their early days but are expected to become increasingly common installations on smartphones.

Video courtesy of Tonchidot.

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