If they could find a way to reduce or remove the element of eyestrain, this could and should become a prominent part of virtual reality research moving forward.
I dont see whats so special about this to be honest. Ive had a pair of TV glasses for years, I used to plug them into a portable dvd player and my xbox and stuff. They give the impression of watching a 50" screen, and only cost about $300 three or four years ago. I dont see how they can justify this sort of price for this thing.
its called a heads up display. they are really for use in wearable computing. it doesn't cause eye strain as they use optical lenses to make it seem further away so your eyes focus far away as normal.