Yelp iPhone Application Adds Augmented Reality Easter Egg - Mac Rumors - 0 views
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Mark A.M. Kramer on 28 Aug 09Mashable reports on a discovery that the latest update to the iPhone application from popular business establishment review site Yelp [App Store, Free] contains an augmented reality easter egg called "Monocle" that allows users to view business ratings overlayed on a video stream from their iPhone's camera. The feature is only compatible with the iPhone 3GS, which contains the necessary digital compass for properly assessing the device's orientation.