While it's possible to get somewhat proficient at tapping spots on a flat screen, most acknowledge it's impossible to get e-mail and other documents written as quickly as with physical keys.

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Mongolian spots (technically named congenital dermal melanocytosis) are flat bluish-green, gray or light brown areas where cells called melanocytes have been trapped in a layer of the skin called the dermis.

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Result: spots that stretch for humor and creativity that wind up falling flat.

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