A new cell phone developed by Samsung opens like a book to reveal a larger OLED screen, essentially turning the phone into a portable media player. Samsung recently demonstrated the prototype at the FPD International 2008 tech trade show in Japan, possibly as the shape of things to come.
As you can see from the video, when the device is closed it looks like a typical cell phone. It has a small screen and a menu of icons, with the appearance of a touch screen.
When the phone unfolds, it displays a flexible OLED screen about five inches across. The material´s flexibility allows the screen to open and fold seamlessly, rather than be composed of two separate screens. The large display would be convenient for surfing the Internet, and is even large enough for watching movies or playing games.
There are no technical specifications, and most likely it will be a long time before the device is commercialized.