Ok, I know I shouldn't, but I'm gonna do it anyway: It sounds to me like your livelihood requires features that are currently 100% owned by Apple or Google.
Software locked inside walled-garden ecosystems, hardware locked down to the OS of one of the major manufacturers.
I'm not saying this is necessarily a bad thing!
The App Store / Google Play model has been a boon to software development, and has been built at least in part on hardware that is totally locked down, forcing consumers to play by the rules.
But I don't think people here reminisce about outdated hardware and software simply because they enjoy outdated hardware and software; they do it because they don't want to be forced to play by Apple's or Google's rules...