The dual-screen Kyocera Echo smartphone for Sprint lets you do two things at once, or look at the world through a 4.7-inch window. But it's only the vanguard of a legion of dual-screen devices that ...
Kyocera's deputy general manager of corporate communications of the equipment group Junzo Katsuki (L) and Sprint CEO Dan Hesse (R) flank the Kyocera Echo as it gets rolled out onto the stage at an ...
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