Solar-powered phones like the Samsung Blue Earth are great eco-friendly concepts, in theory.
But let's be frank with ourselves. We won't see these sun-worshipping devices replacing mainstream handsets in the near future. Meanwhile, we still have a mountain of gadgets that need to be juiced regularly, which is why designer Knut Karlsen's idea of integrating flexible solar cells onto rechargeable batteries could be a more immediate solution to reducing our carbon footprint.
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