one benefit is this seems to be, by far, the best hardware for augmented reality. aside... AR boardgames would be cool... it could be good collaboration tool,

one benefit is this seems to be, by far, the best hardware for augmented reality. aside... AR boardgames would be cool... it could be good collaboration tool, many people touching/moving parts of the same application (or presentation, etc). and as the video suggests, this interface makes more sense for something like 3d modeling (on paper).