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Need to find a bathroom, fast? Use your cell phone.

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Trapster warns motorists about speed traps and red light cameras. (Photo courtesy of Trapster)

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Trapster warns motorists about speed traps and red light cameras. (Photo courtesy of Trapster)

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Trapster warns motorists about speed traps and red light cameras. (Photo courtesy of Trapster)

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MizPee provides cell phone users with rankings of restrooms. (Photo courtesy of Yojo Mobile)

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MizPee provides cell phone users with rankings of restrooms. (Photo courtesy of Yojo Mobile)

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The capabilities of cell phones keep multiplying. New programs can alert drivers to speed traps, direct pedestrians to the nearest bathroom, and allow total strangers to engage in a game of virtual tag. And many of the applications are free.


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