An ActiveWall is a wall that not only has variable opacity (to trace windows where you want on the wall), but also can display information. That information can be colour, an image to simulate a texture (wallpaper, paint or various paint finishes) or a feed (from TV, Internet or webcam).
You will be able to download themes from known interior designers to decorate your home and it will change the colours, wall illumination, window placement, music and smells of the house (synthetic odors).
You will also be able to subscribe to high-res webcam feeds and display it on the whole wall or room. Imagine your entire wall displaying a realistic real-time moving image, smells and sounds of a field in Manitoba, the French Alps or downtown Tokyo. It will feel as if your entire room was teleported in those places.