The example we saw was a simple radio with a a pair of dials and a speaker, and when the iPad's camera was pointed at it, a circular interface along with a menu system popped up that cannily tracked the radio.

ENGADGET

For example, on the User Interface for the HM-901, you'll notice that the buttons and a rotating navigation menu cleverly comprise the main interface.

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The small stylish buttons that control the interface are stiff and the animated menu moves like a slide show.

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