Anyone who has worn an Oculus knows this is the next thing, its like when Steve saw the GUI for the first time. Now I think you can see Oculus a bit as Xerox. They got a lot of stuff right, but navigation is terrible, UI is terrible, mainstream reach is terrible, weight of the set is terrible. This is where Apple comes in, refines the technology so it becomes usable, makes the main stream adopt it by Appstore. As for usage, who wouldn't like infinite extra screens setup while working, having blueprints show up as an overlay while working on the car, having notifications and phone integration. I can think of a zillion thing that this could be used for and problems it would solve.