My bet would be there is none in our generation and we spend the rest of our life with two kind of computing: one that fits our hand and other devices to deal with the rest.
The question becomes, is this inherently better and more convenient than a laptop ? If it's not, it will stay a nice accesory, like the watch is a nice accessory.
The watch itself is already a phone substitute for many people and continuing to grow. Isn't wearing a small thing on the wrist better than a brick in your pocket?
Do you have any imagination about how form favors could advance or even be different?
The phone is not the final destination for personal computing.
- That can be used to zoom in (binoculars)
- Keep track and show the score of the real life fencing, ping pong, tennis, card game ,etc (Apple Score) your playing
- See how a building or place looked x amount of years ago (Apple Rewind)
- Go to a conference and upon meeting someone the glasses provide their name and company their with
- Many many more innovations
and LOL my nicknames for some of those ideas are probably silly, but they are unique and i think useful to the point of people buying Apple Smart Glasses as much as they buy iPhones.
All of your examples are great, but you'd still keep a phone in your pocket while doing these activities.
Another aspect to this: most of those were better done with Google Glass, but the social discussion and Google being Google just killed it. I hope the Apple devices will bring more acceptance, but once it's there I'd see other AR makers take precedence to bring better implementations than what the Vision Pro is pointing at.
Heck, at this point the iPhone isn't even the global market leader, I'd totally see a Samsung like maker take the AR market and push it further, the same way their smartphones are actually pushing the enveloppe while iPhones and Pixels keep being the vanilla choice.
Now The iPhone could do the ideas ive thought of above but it's all about User Experience ... when playing ping pong im not going to hold my phone up and let it take score for me and display it on my phone. No i want this to be done automagically and effortlessly and wearing glasses is the best UX for it so is meeting people and seeing their name/info and all my other ideas I noted above and others not noted. One of my coolest ideas ive thought of fixes an old age question we as humans wont ask again.
Meta (Facebook) not having a phone on the market to sell and work alongside smart glasses is a bad thing for them!