What do cell phones look like in the year 2144?
Obviously they won't have a screen anymore. They'll be pop-up displays. So if you're sitting on a train and your romantic partner sends you a steamy selfie...guess who has an audience?
Has this annoyed anyone else?
If they're tactical screens, that makes sense. But I still don't think transparent displays on personal devices will be a thing in the future.
This is my bet as well. I think at some point, foldable screens will get good enough to get mass market, and then it will be about how thin/light they can make those so they get bigger screens but the device remains pocketable. Not to mention, screen tech matches/exceeds today. That's the practical appeal of things like holos outside of just being aesthetically "future looking."
I'm also very interested in the idea of AR glasses that can be worn normally, but that's pretty limited by physics right now (battery and camera tech especially.)