@vandys Of course andbox never can be come a mandatory part of the system, it is just a sandbox, if it ever works, to run non-native applications. Like Wine in Linux, it you need an Android app for your job and you can run it in andbox you may carry a UT phone around, otherwise maybe you can't, unless you run around with two phones. But I would never advocate to make apk executable files native in UT.
The 5X is already being worked on by the Halium team, but is not generally recommended in the community due to its flash hardware defect. I've got one and I'm waiting for it to die in the next few months.
I am Matthias, a long time C developer and FreeBSD enthusiast. More about me at http://www.unixarea.de/
I own a bunch of BQ E4.5 devices (all my family use them, we have no other smartphones) and a BQ FHD M10. I am (o was) an active member of the Ubuntu Touch community, beta tester of BQ's M10 and wrote a small booklet about the E4.5, it's here in English and Spanish. I'm short before flashing one of my E4.5 to UBports.
The most important thing to me is privacy. Not to be in the hand of Google or apple or windows or anyone else.
It haven't to be mainstream, but it have to respect me.
It is also important to me to use my device as long as I want, secure. And not have to by a new device. (I know this is kind of not realistic because it is in the nature of the things that operating systems need more powered devices when the develloping is going on)
In this context a verry huge thank you to the people of ubports and halium.
Thanks for the flowers. But the project should not honor a single person for their credit. Its the community that makes it big. I would not accept a name similar to mine, nor I would assume leadership.
We are preparing another way to give the project a structure and more focus. Watch todays Q&A for more infos :)
Yes, I know about the GPG validation chain, and I'm confident about the communication phone-server and vice versa for the official issues, so to speak.
I'm more interested in how to check integrity when downloading one of these images  directly, or in the security check of all those apps people are developing and uploading to the openstore, and things like that . That's why I asked about the plan to keep UBports secure.