I always wanted to build an AR app for inside data centers. Imagine looking at a server and being able to open a terminal or desktop that you can immediately interact with on the floor. or have it display resource information like hardware utilization, temps, network throughput and configuration, etc.

it would make a difficult job just bit more manageable.

I'm in the AEC industry. Almost any implementation of on site augmentation sucks ass most especially because the tech nerds making them have a really hard time truly understanding the needs OF tradespeople and installers.

Almost all of them are top down implementations meant to assess tooling and field quality rather than actually acting as an overlay aid in construction (which, like, 90% of tradespeople worth their salt don't actually need FYI).

Also, I've found, most of these tech nerds making this shit don't know how to actually put a building together and are constantly flummoxed by the methodology.

It's already used in construction as a documentation device. Photos are big as a documentation tool and some inspectors already use wearable cameras as a tool.

Or playing Pokémon GO

They are used for that kind of applications already. You put one of those on, and some technician remotely guides you in doing some maintenance while looking through your eyes. They can mark things in your fov, show you diagrams, whatever. Pretty neat actually.

Unneeded. We already have a tool for that it's called blueprints, they haven't failed in over 3000 years.