It all started with one screen! The first touchscreen phones had just one screen. This seemed sensible as all previous phones had one screen- with the exception of a few. For me, the next development seemed to be touchscreen phones with a hard keyboard. This is what started the idea of flip-out touchscreen phones. I guess then, someone thought "Why do we need a hard keyboard? Why not another touchscreen?" After all, we had just left 'button typing'. Well, that explains the dual-touchscreen phones, but how and why did someone decide to think up the three-screened phone in the above video. I guess it's evolution; however, I will be surprised if the new concept make it to the market. This does not mean I don't think it's amazing!