Thing is though, most camera makers are kind of crap at software in general, and their UX teams are nonexistent. So being able to delegate to your phone makes a fair bit of sense to the people who'd like that, even if you're not one of them.
It makes so much sense that there's even a second team taking a crack at it that I wasn't aware of: https://www.alice.camera/
That said, this is still a niche within a niche: I don't think either will be some mass market product. But being able to take my phone and a Alice or a SwitchLens to a concert in both pockets is pretty neat.
These will more replace the things like the Fujifilm X70, or a lot of what people use the X100(roman numeral) for, while getting the workflow benefits you're rightfully after.
I don't trust a camera manufacturer to keep their Android deployment up to date, or even to really fix that many bugs in it, and a whole Android OS is a lot more complex for them to manage than SwitchLens/Alice's apps and internal RTOS + comms layers.
Other alternative would be for one of the big players in the mirrorless space to open up their operating systems, but Fujifilm's X series communication app is bad that I simply don't see it as feasible: they really are terrible at software.
It's a good idea, but I just don't think it's going to work. The mechanical connection between the phone and camera is awkward, and connectivity through Bluetooth/WiFi can not be seamless enough. Especially in challenging radio environments (like a concert).
> I don't trust a camera manufacturer to keep their Android deployment up to date, or even to really fix that many bugs in it, and a whole Android OS is a lot more complex for them to manage than SwitchLens/Alice's apps and internal RTOS + comms layers.
Android can allow third-party software, much easier than hacking into the proprietary OS.