Thank you so much @PINE64 for all these information. I love already my future pinephone.
I guess Pine64 has the good strategy : a middle ability/price so called "smartphone" to start, that anyone can use for what it is, a pocketcomputer. I don''t iphoneX/galaxy15 or whatever, I have a laptop for working and people can get dsktop to make 3d animation and a nikon to take good picture.
Pocketcomputer can't do what laptop do and what desktop do!
However, too cheap and unpowerful one as mozilla bet on (Firefox OS) can't work because it has to be useful.
So, one more time, I want to thank Pine64 for their work and I think they get something here.
 Oh, and I forgot to say something nice to UBport community : you know I love you too!
I have a dual boot on my nexus5 (should I say trial boot as I still have firefoxOS) since ubuntu touch 3 if I remember correctly.
I can't wait to have Ubuntu Touch running all my Pine64 devices, PinePhone, PineTab, Pinebook Pro, and PineTVbox (already possible to make, just not yet commercialized clearly, it might be missing actually) . That will be amazing!
One comment on the way : I'll delete my dual boot, lineageos and firefoxOS as soon as carddav will work between Ubuntu (Thunderbird's cardbook), Nextcloud and Ubuntu Touch (please don't answer me to give me the link to the script...
Thank to all of you FLOSS guys!