Primitive results when compared with 2D display with 3D optical illusion techniques that have entered the market for some years with glasses and are making baby steps without. One problem with real 3D displays is that you cannot simulate the 3D perspectives required in the entertainment world. For example, if you want to show a horseman galloping towards you, you need to simulate the full expanse of space between you and the horseman and the mountain range in the distance. With a true 3D display, the perspective is only as large as the size of the display column itself or in the open air, as big as the display area. Maybe this latter example will be where it will find its first entertainment use if it ever makes it commercially. As advertising tool, I have no doubt it can succeed like holoscopy before it.