Sprint to Add Kyocera Echo, a Two-Screen Smartphone - WSJ.com

I suspect this phone is a leading indicator of future mobile device mainstream trends; check this Sprint page for more details

Sprint Nextel Corp. plans to unveil a smartphone late Monday that includes a twin set of touch screens that give the device a pseudo-tablet design, according to a person familiar with the device.

The device, called the Echo and made by the U.S. unit of Japan-based Kyocera Corp., features two 3.5-inch touch screens that can be stacked side by side.

Sprint to Add Kyocera Echo, a Two-Screen Smartphone - WSJ.com