I disagree; what you're talking about would be an issue in today's world but if someone were to come out with a way to re-use a personal computing device (phone today, maybe something else in the future) so that you could have multiple visualizations with it to the point that you would never need to buy another dedicated device again, I think you'd eventually finding that picking up enough traction that it would be everywhere. I mean, why not? Similar to wifi which is pretty much everywhere now.

Ultimately I don't know if it'll be the phone that powers this or if it just simply takes so long that it'll be something else but I would be shocked and supremely disappointed if, by the time I pass, there isn't a way to quickly and easily view your digital information on any screen with or without keyboards in multiple layouts that best fit the screen and purpose.

That's a future I think we could have had, but IMO it doesn't look like it's actually coming anytime soon thanks to market fragmentation.

And even if it did, in my experience, working on a machine with remote storage and computation resources in the cloud is anywhere from annoying to nightmarish depending on local latency and bandwidth. Good luck getting the HW/OS/Cloud vendors to come up with a mutually agreeable standard for this.

So I achieve my approximation of that future for myself by carrying around a beefy linux GPU laptop, a trac-ball, and keyboard wherever I go. I'd love to just use my desktop sitting at home as my cloud storage and computation server, but I gave up on that some time ago.