Most importantly, though, we are talking about iPhones here. I can’t say I’ve ever thought to myself “gosh, I wish my phone had more RAM!” in…over a decade?
Honestly I'm glad they don't. The PC is the last open platform out there and the last thing I'd want to see is Apple encroaching on it with their walled gardens and carbonite-encased computers.
That was… *checks CV*… I left in April 2015.
I think RAM is like roads: usage expands to fill available infrastructure/storage.
That an iPhone today has as much RAM as the still-functioning Mid-2013 MacBook Air sitting in a drawer behind me is surprising when compared to the 250-fold growth from my Commodore 64 to my (default) Performa 5200… but it doesn't seem to have actually harmed anything I care about.
Swimming in badly written SPAs and cordova/whatever hybrid apps is seriously helped by eg 12GB of RAM on a mobile :)