Phones that can power themselves

They're only concepts, but the designs could be done now

The 'Yoyo'

It's only a matter of time before phones join the alternative-energy trend in earnest, and some companies are already trying to get out front with designs before the onslaught begins. ModeLabs, for one, has released three concept designs for mobile phones that use renewable and kinetic energy, according to Electronista: The wearable "YoYo" (kinetic energy from bouncing around the neck); the "U-Turn" (energy from opening and closing the keyboard, and the "Runaway" (to be worn on the wrist and recharge itself like a self-winding watch). We have only one question: Why wait for renewable energy technologies to design such beautiful phones?

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