, noted yesterday that Apple has filed a patent for transparent photovoltaic cells that can cover portable devices. This means your iPod, iPhone or MacBook might be coated in a layer of clear, power-charging solar cells.

Motorola already has a similar patent, though it only applies to covering the display area with solar cells.

While it’s not clear how much power these cells will be able to generate, it will certainly be nice to have devices in the future that can charge themselves just by sitting out in the sun.

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