The competition is asking for prototypes of a badge system.

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The prototypes have a unique intelligent navigation system which enables them to plot their own course.

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Like most prototypes, the the SWAN (System for Wearable Audio Navigation) is pretty bulky in its current form, with a laptop, GPS, inertial sensors, pedometer, RFID tags, RF sensors, a compass, and other gear all stuffed into a backpack, although they're apparently already working on a smaller version.

ENGADGET: SWAN: System for Wearable Audio Navigation

This, in fact, confirms that Facebook not only gave thought to actually crafting its own operating system in order to usher Facebook Home into the world, but moved forward with prototypes.

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Like many of the prototypes we've seen at CEATEC, there aren't any plans to actually bring the system to market, but the technology could be used in other devices.

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It is a system of metal construction where parts can be attached to each other, which is often used in industry to build prototypes.

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