In the category of "Why didn't anyone think of this earlier" is the Sony Playstation 3D display. The product is a 24 inch 3D TV that is capable of producing a 3D image that renders 2 private 2D images when viewed through different 3D glasses.
Source: store.sony.com
Why is this so important? With this, gone are the days when your buddies could simply look at your screen while playing an FPS game and kill you. With this display you effectively have 2 private views on one screen!
