Charging Smartphone by Breathing

What if you never had to plug in your phone to recharge it?  SmartPlanet describes the invention here:  Recharge your smartphone simply by breathing

Students, I’m interested in your thoughts:

  • What might be inside this device?
  • How would it work?
  • Is there a need/demand for this?
  • Would you use it??

It seems to me like it could have great potential for cell phone users in areas without the infrastructure of a reliable electricity grid, maybe in far-flung regions of developing countries.  And it has the bonus(?) of making you look like you’re in a sci-fi movie.

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