I don't see that as being a problem that people are looking for a solution to. You're describing interacting with a very heavy desktop-type computing system, but the headset only solves the output problem. If I need large numbers of application windows arranged in space, I also need much more sophisticated input devices. Head tracking, eye-tracking, Leap Motion style stuff, all of that can be useful, but it's not enough for typing this comment into this input box, for instance. Better voice helps, but it's still not good enough, and it also adds yet another social factor that needs to be overcome, as people don't really like talking to their computers on average.
Maybe eventually this is the world we'll be living in. Right now, and for enough of the foreseeable future to worry about trying to predict, people with those needs will want to have a real keyboard and mouse or trackpad, and at that point, they will just use a laptop. Any benefit you get from the VR is, I think, outweighed by the downsides of not being able to just look around the actual physical environment.
You don't have to beat the competition on every axis to succeed, but you do have to eliminate any axis for which you are an immediate non-starter. I think the headset makes it an immediate non-starter for widespread general purpose use.