I'm writing this on Ubuntu Touch running on a Raspberry Pi 3 using the OSK on the Pi 7" touchscreen.
Thanks for the hard work put in. There are some issues still of course. Something odd with the graphics in Pi 4 windows and a slight overlap on the touch screen making left or right swipes tricky but this feels so much closer to useable than the first image. I don't think it is too far now from a platform that will showcase convergence and perhaps even let us develop apps live. I appreciate this is a side project so the UBports developers can't make it a high priority. Hopefully though the work done will help towards getting other Arm64 non-Android ports running smoothly. As a long term Linux user - trying to help get Unity8 or UBports working on the Pi has been very humbling - I'd no idea how little I knew/know!

Is there a place where UT progress and dead ends with the Pinephone are being documented? I find there is so much posted in the Pinephone group on Telegram and a lot of it is not UT specific so I don't follow it as much as I should. I'd still like to know more and try to apply it to the Pi.

I realised that that post may look like I'm claiming some credit and that would be wrong.
Early on I did some blundering about in the dark and kept posting about my inevitable failures to encourage someone who knew what they were doing to help - that is the sum total of my contribution

I have a touch screen for my Raspberry Pi. Ubuntu Touch is well designed for touch screen, small screens and low spec devices. Plus UT running natively on a Pi opens up a huge potential development base.

Good to see great progress.
Using the latest image the Pi4 boots and runs well although a graphics issue means that you can't read anything opened in a window.
Scaling is now sorted on the monitor and when using the 7 inch touch screen.
The graphics issue does not affect the Pi3 but it is (understandably) frustratingly slow.
The touch screen worked on the first image but not on the most recent one. UPDATE It woked after a reboot but as the left and right edges are slightly offscreen it restricts its usefuleness.
UT on the Raspberry Pi feels much closer now to something that will work. Thanks to those who understand all this far more than me for putting the work in.

@advocatux Thanks - oh and apologies for re-opening a too old thread elsewhere

@Mark Thanks to the Q&A for kindly complimenting my contribution. I try my best to learn and share. From a distance it is hard to know how helpful that is. I'll keep on learning, sharing and appreciating the support I get from the community.
PS I need to make my questions shorter and clearer

Congratulations for all the work on the Pinephone and other Arm64 devices. One consequence of this is UT becoming more stable and useable on the Raspberry Pi. My question is: Where (website, group,book etc.) can I go to learn more so that when community members with good UT developer skills and knowledge come up with suggestions on how we might solve issues I have a better chance of knowing what they are talking about and how to start? Some things are making way more sense to me now than they did a year ago but I'd like to travel further down the linux user to developer road so my contributions are more helpful to the community.

On Pi 3 with touchscreen it starts without an external keyboard or mouse. The bug where you needed to unplug the mouse and plug it in again was fixed a long timealreadyThere are still niggling selection problems but lots of improvements. Good choice on the Openstore (though some apps still use oxide and ubuntu.web and they will need to be updated to work on the Pi). For me Dekko, Morph, TELEports, Openstore, Terminal, UT Tweak Tool, Document Viewer and many more work well already.

@Pulsar33 Several of us have a Pi 4 (mine is also 4Gb) but until someone (who knows how) can put in the work needed to get the tiling vs Unity8 problem fixed we can't get very far. However the more bugs and issues we can identify and fix on the Pi 3 in the meantime the better the Pi 4 experience will be when it comes.

I've tried image 117 and it seems to work as well on the Pi 3B+ as 95. It still has many of the same issues (wifi, selection and audio). Rodney helped fix the bug where the swipe tutorial covers the screen but won't disappear (because you can't swipe like on the phones).
If you only have a touchscreen and you find your view is getting blocked by the first run tutorial then edit /var/lib/AccountsService/users/phablet so that the line starting DemoEdgesCompleted reads DemoEdgesCompleted=[‘left’, ‘top’, ‘right’, ‘left-long’]
You can do this via ssh or (with difficulty) in the terminal squinting through the tutorial screen.
If you have an hdmi monitor and connect to that it should open in desktop mode and after that it will be fine in the touchscreen next time it is run.
The Super-a Key opens the launcher just like on Gnome.

@ComLarsic Can you not log out of the GUI and then install it from the prompt?

@WLBI I'm too mean to pay £34 a month when I can get away with £14

@WLBI I pay for 2GB a month, my partner pays for 20GB a month. Data in the UK is only unlimited on expensive contracts. I have unlimited minutes and texts.

Very quick and easy to do. Access Network Settings by pulling down from the top, select Mobile Settings, Slide Cellular data to off.

@3arn0wl I use Gparted. Easy to do when the SD card is in another computer (or in a USB card reader attached to the Pi running Raspian) and you can therefore unmount the partitions to edit them. Good luck.