A couple a years ago i found a video on YouTube from the show Modern Marvels.  This show when through and showed the current and past technology used in bedrooms.  The most exiting part was when they were invited to go into the Microsoft house.  Microsoft uses this house to display the latest technology in development for the consumer market.  The part i am talking about is the bedroom of course, which they lined the walls with a thin layer of OLED's like wallpaper.  The entire room was a giant video screen which you could display anything you wanted on the walls, even change the color of the room with the push of a button.  To control the room they designed an orb you hold in your hand to navigate the menu's which are displayed on the wall.  In the future OLED's will be able to be purchased in rolls like wallpaper to apply to the walls. Here is the video from the show.