I don't care much which OS I have to run, they are all the same now. I just want a smart phone that fits in a single hand.
I tried the palm and it is a bit too small, and the battery life was insanely bad.
Maybe Purism could think about making a Librem 4 after the 5 releases. Double-down on the hacker-hobbyist niche.
The specs are far from the Librem 5, and software support is basically DIY, but at $150 it might be worth trying if you want a Linux hobbyist phone.
Might be hard to sell for a sensible price in that case.
Edit: additionally, it looks like the Xperia is thick enough to have no noticeable camera bump. Has a 3.5 mm jack too; I like the look of this quite a lot.