I love the idea of having multiple screens for different uses on mobile devices. When used for notifications, the second screen can clear up the main screen for the core content experience. This eliminates the need for notification systems that are often distracting. Prolonging battery life is still a top concern for mobile designers and engineers. The second screen can help by reducing the amount of times the full screen lights up to display notification information. The Samsung Continuum uses one large screen that selectively lights up the lower portion, which is close, and still pretty cool. Too bad this is running Android (and an old version at that).
Samsung Continuum’s Second Screen? (On Engadget)