This is next-level geeking out right here.
Hands down the biggest problem all forms of VR have right now is showing someone who isn't in the headset what is going on. Putting a 2D image on a screen that shows me what you see out of one eye doesn't do much for me. It doesn't give me the emotional feel, no sense that you as the player are actually in the world you are viewing. It's a real problem, and a lot of very smart people have found clever ways to solve this in some cases with depth-sensing cameras and green screens. The results are a little mixed, and difficult to reproduce in every game, but still very cool.
Full story from the WindowsCentral blog...