> I really really really just want
The word just is doing a lot of work here.
E.g., you want graphics acceleration.
That means you want work done in Mesa so that the GPU in question is better supported than it currently is.
But you also want Firefox's Webrender changed to allow using the GPU in question under Linux, by default. Otherwise the browsing experience is laggy as hell for everything other than HN. That means lots of testing in Firefox, and somehow convincing them not to blacklist your GPU under Linux. (Which I'm guessing takes time since changes in Mesa don't hit every major distro all at once.)
And you also need video acceleration to work out of the box. Otherwise you're going to be trying various flag combos just to get your phone from getting hot while watching a video. And then your browsing experience probably gets laggy again.
And then you're going to need to rinse and repeat that entire process to get the baseband to work with nearly any carrier, at least in the U.S. They probably aren't going to support using that baseband on something that isn't an android phone. You'll need some reliable way around that. Is this an open research question? I don't know.
Once you have those done, try to figure out why playing music to a bluetooth speaker over this device sometimes changes the pitch of the audio! Oops, another unexpected rabbit hole.
I declare by fiat all of the above problems have been solved.
Oh no, I forgot about battery life.
Now I've got a summer project to figure out why suspend sometimes-- but not always-- freezes my phone.
After that I need to figure out the signal path between baseband and Linux to figure out why getting a call sometimes-- but not always-- wakes the phone so it rings reliably.
These are all hard things. The idea that motivated rando open source devs can roll up their sleeves and solve phone usability is laughable.