I think it's a cool idea, but "see-through functionality" isn't possible with today's hardware. Eyes work in tandem, including focus. If you have a screen over

I think it's a cool idea, but "see-through functionality" isn't possible with today's hardware. Eyes work in tandem, including focus. If you have a screen over one eye, there's no good way to have what's displaying on the screen cooperate with what the other eye is doing. Similarly, I think VR is out: sending disparate signals to each eye would be murder on the inner ear. So that leaves a Google Glass-style AR overlay, which remains an ok idea, but is apparently pretty hard to get right.