Back in early February, Sprint held an "industry first" event and showed off the Kyocera Echo, the first dual-screen Android phone to come to market. Combined, the two screens make up an astonishing 4.7" of real estate, while still giving users a relatively compact device.
We didn't have availability info back then, but we do now: April 17th for $199.99 on contract with Sprint.
As far as I can tell, the Echo should be a major success if it is marketed well. But one of my concerns with the device is that the Android developers may not take into consideration special versions of their apps for it. For instance, a special Facebook app that takes advantage of both screens would be a good selling point for a lot of consumers. Another app that might make a lot of people purchase the device would be a dual-screen video editing app (if it would be light enough to run on its single-core Snapdragon CPU).
We'll see how well it does in mid-April.[Sprint]