Sprint Nextel Corp. plans to unveil a smartphone with a twin set of touchscreens made by Kyocera Corp. late Monday, according to a person familiar with the device.

The device, called the Echo, features two 3.5-inch touchscreens that can be stacked side by side to form a pseudo-tablet design. Users can accomplish multiple tasks on the two screens, or drag items from one screen to the other. The phone, which runs on Google Inc.’s Android software, uses a pivot hinge that allows one screen to be tucked under the other, transforming it into a more conventional touchscreen phone. Get the full story »