- A killer feature for me would be (pedestrian) navigation. Highlight the road I have to take with a subtle color. That would even work on a very low-res display. Or at the train station, highlight the part of the train were my reserved seat is.
- If you have a higher-res screen, you could add additional information to the walls of places, like restaurant ratings etc.. Making it look just like a physical sign is key.
- One thing that is controversial, but would be huge for me, is face recognition. I sometimes have a hard time remembering what face belongs to what name. A option to show name tags for people I've seen before would be really convenient.
- How about an app that shows plans when fixing a bike or a car? Or one that tracks where you left your screws? If you have a very good camera, it might be able to even find screws you lost :-)
- Of course AR/VR games could also be a huge thing. Time will tell if that really catches on or not.
Frankly i see little use for the likes of AR and VR in civilian life. Hell even the smartphone of today is something of a bleak shadow of the business tool it once was, thanks to every OEM trying to cater to consumers that barely message and access social media.