Editor's Note: Using augmented reality for location-oriented applications is an old idea, but the fears were of big brother tracking you, not your BFF.
Like most Internet applications, Twitter connects you with people who seem to exist in a vast, abstract, cyberspace. Now, a new iPhone app from the French company Presselite uses augmented reality to show you exactly where your friends are tweeting from.
The app takes advantage of Twitters new geotagging feature that lets tweeters identify their address. The app then displays either an avatar of the tweeter, or an arrow pointing to them, and indicates how far away they are.
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