If the potential for AR is limitless why then havent we seen it already in place? The current version of Oculus and Hive are very good but yet software developers do not seem interested in developing kick ass applications for them. If these software developers are not doing it for the current crop of AR/VR devices that have been on the markert for well over 5 years now, why would they suddenly decide to do it for Apple which is a much much smaller market when compared to the Windows/Linux market.
We haven't seen it already in place because there isn't a piece of hardware that actually utilises it properly... yet.
Many of the apps that have already been developed for iPhone AR, will be available when Apple releases its headset. It's just that they will function far better because you will be able to interact 'inside of them' with your hands. Apps like 'Night Sky' will look amazing, because you'll be able to see the galaxies using the AR tech, and put yourself in the middle of them.
You will be able to sit in the park and watch dinosaurs walk around, or put yourself in the middle of any number of environments; watch 3D movies directly in front of you; watch your favourite band perform in your living room, or watch a sports event play out in 3D space in front of your eyes. You could see the sun on a cloudy day with an overlay, and I wouldn't be surprised if they have colour blindness correction built in too or the ability to change the contrast or colour of the world as you desire.
This is without the ability to give you information on the fly, like directions, or instructions on how to fix or repair items, or the ability to converse with others in a 3D space.
There might still be physical tablets or small slates that you can touch to use physical controls, but they won't need to have much tech, because the lenses will project the data you need directly onto them. There will also be new gestures that you make in the air in front of you; imagine looking at an item or landscape, and being able to use pinch to zoom to make it appear bigger. The days of looking at small screens in front of you will seem antiquated.
There will also be shared AR experiences, where anybody wearing the lenses will be able to see the same things.
Like I said, the possibilities are endless. The tech is in its absolute infancy, and as it gets smaller and more powerful, it will completely change the world and the way people interact with it.
Whether that's a good or bad thing overall is the question, but this is the way it's going.