The whole idea of the Touch Vision Interface is to enable touch interaction on a variety of different connected surfaces via a phones’ camera view. All that touch input coordinates are sent to the captured video feed, where your eyes will be greeted by an illusion of being able to manipulate a distant surface directly, making it feel totally seamless and natural.
I would imagine the advertising industry would have a field day with this kind of technology, where consumers get all googly eyed. Imagine a wall of digital billboards which allows one to paint across them with but a single gesture, seamlessly. It will still take some time before such technology will be adopted as a mass measure, though, so right now, we’ll have to make do with whatever AR ads there are available.