I did write several times to Jolla that they should work together with Fairphone. Having a Sailfish like for the Sony devices would be great. I had it for my xperia and would again pay 50$. In my eyes it is worth it.
Sadly Fairphone and Jolla just state to open threads in their forums. Which apparently does not help at all. Why cant they just talk to each other and figure out a license plan. Would be win win for both sides I think.
And I would get a non Android system wich I do like very much. Miss the times when I had a Jolla phone. But I like the concept of the Fairphone much more.