Re: I remember when I pointed this out last year
Heck - I said it 10+ years ago.
I had an XDA mini S at the time.
A colleague and I envisaged a block about the size of a pack of cards which had a few essential connectors (power/USB/ethernet/vga <- feel free to update all of these to a single USB-C nowadays), 3G, WiFi, decent battery... and then you would have a remote display/audio device which would connect over bluetooth and use the mobile signal from there. You could dock it at your desk and work on it, you could have a portable screen/keyboard to use with it when out and about.
It's not far off, except that the form factor has been rolled out, and a screen has been added where we didn't see the technology being ready (and it wasn't).
USB-C is actually a pretty good answer to the issues the design faced (because those ports were annoying but absolutely necessary in our eyes, nothing proprietary).
Current phone specs (sum of core speeds shown):
16Ghz (8*2) A53, 3GB RAM, 32Flash, 2TB removable (keyONE)
7.9GHz, 6GB RAM, 128GB Flash (OnePlus 3T)
7.5GHz, 4GB RAM, 128GB Flash 2TB removable (LG V20)
Those are ridiculous spec machines - yes you'll want a USB-C connector and the ability to drive a couple of screens from it, you'll want your multi TB raid array hooked in at the same time...
But do we seriously think that 99% of tasks couldn't be done on the above.