Phones these days have been increasingly evolving in terms of ergonomics, technology and design. Designer Nick Trumbo’s Samsung Flip concept seems to put the OLED screen technology to interesting use indeed. This concept phone uses an outer screen, and a fold-up main screen, with the one on the outside used for a quick glance at notifications. A one of a kind phone, given that the large main screen neatly folds up and flattens out seamlessly, this design also enables you to clip the phone on your pocket, with the outer-screen facing the world. And that’s not all. The inner display can also be used as two separate screens, further extending the boundaries to which this phone can be pushed!