IMO even this AI phone is doomed in the slightly longer run.
One more step into the weirdness and people will just be working with AI to build their own bespoke phone with the specs sent over to a manufacturer that is "like PCBWay, but spits out whole devices".
I have no idea what this does to society, the economy, etc when we reach a point where nobody really "needs" any kind of middleman for almost anything (well, except for things they actually really need, like food and shelter), but it looks like I'll see it happen for a bit before I die.