An anonymous reader noted that "A patent has been filed for the "Upside Down Phone", which features the keypad on top and the screen on the bottom. The idea behind the upside down phone is, apparently, to allow faster texting by have a more comfortable position for the thumb to work from. A quick check of this seems to confirm the theory, making this one of those "Why didn't I think of that?" moments."
Upside Down Phone Patent
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