The Kyocera Echo is one of the most interesting Android Phones launched to date thanks to an extremely innovative form factor. At first the pone appears to be a regular full touchscreen phone - which it is - but sliding/flipping the main screen reveals a secondary interior display. Taking it a step further, the two screens align to create the appearance of one massive 4.7-inch display.
Kyocera greatly customized the version of Android running on the Echo to leverage the unique dual-screen display. Several apps, like YouTube, allow you to make selections in one display while viewing content in the other. Users can also use the combined screens to view one large display across both screens.
Invidiually the screens are 3.5-inches and 480 x 800 pixels resolution. The Kyocera Echo has some other nice features including a 5MP camera that records 720p video, 1 GHz processor, 3.5mm headset jack and all the bells and whistles that come with a typical smartphone such as Wi-Fi, GPS, and Bluetooth.
While the Echo is unarguably innovative, the build quality has been questioned and it seems a bit more like a prototype than a ready-for-primetime Android Phone. However, we'd like to see this concept further developed as it definitely has some promise.