Intel just recently unveiled a concept laptop at IDF that features four screens.  The first screen would be a normal sized monitor, and the other three are OLEDs that are just above the keyboard.  The purpose of these three screens is so that the user can better organize their work.  For example, the smallest screen located to the far left would have some applications, and the center screen would show applications within those applications.  The third screen to the far right will have a preview of what is in those apps, and the user can bring that image to the big screen with a flick of the finger.  Go ahead and watch the video if you are confused, all in all, it’s pretty cool.