If people wish, they can use just one screen, or have something - say, a YouTube clip or Google Maps - stretch across both screens. But Sprint also lets people use certain applications so that different parts of the app show up on each screen. For example, you can read e-mails on one screen and respond using an oversized onscreen keyboard on the second display. Or, you can play a game such as "The Sims" in one window with the controls taking up the lower screen.