Oh, just as interesting, plugging this into VR system! Make it way easier to multitask and work on lots of systems (at the risk of looking incredibly goofy).
Sadly VR is useless for reading :( I wish it wasn't so. You're much better off with a high resolution screen with the ability to zoom in and out between landmarks. Maybe a head tracker to make navigation more intuitive.
I wouldn't hold my breath. Maybe for causal reading but not for day in day out 8 hours a day. It's also solving the wrong problem when it comes to immersion. I fly FPV which is a fuzzy intermittent analog 640x480 screen and it's incredibly immersive. People are fully immersed into their tiny mobile phone screens for a large portion of their day. AR peaked with Pokemon Go and we didn't even need Google Glass, Magic Leap or HoloLens. We already have the hardware for full immersion and it's sitting right in front of you (or in your hand).