WIP: The Pine Phone is, too, having ubuntu touch
blocker? when you want to port a new device, you will need time, patience, and knoweldge. The team always welcome new people that want to port a new device ;)
So yep if there is a need of more contributor to port anywhere the project, you also need good devices documentation from manufaturers, hoping there are no dark blobs (spoiler-alert: everywhere), etc. To avoid most of this, ubuntu touch use lxc, many things, and halium, if you are interested into that stuff, have a look at http://docs.ubports.com/en/latest/porting/introduction.html
About the latter https://web.archive.org/web/20191021165629/https://ubports.c...
For porting UT to Android based devices, see http://docs.ubports.com/en/latest/porting/introduction.html
The devices supported are quite old. What are the blockers for a recent phone? Are bootloaders not unlockable? Are drivers not available?
Supported Devices:
Devices device: arale: This issue affects the Meizu MX 4.
device: bacon: This issue affects the Oneplus One.
device: cooler: This issue affects the Bq M10 HD tablet
device: deb: This issue affects the Nexus 7 2013 LTE.
device: flo: This issue affects the Nexus 7 2013 Wi-Fi.
device: FP2: This issue affects the Fairphone 2
device: frieza: This issue affects the Bq M10 FHD tablet.
device: hammerhead: This issue affects the Nexus 5.
device: krillin: This issue affects the Bq E4.5.
device: mako: This issue affects the Nexus 4.
device: manta: This issue affects the Nexus 10 tablet
device: turbo: This issue affects the Meizu Pro 5.
device: vegetahd: This issue affects the Bq E5.
device: w7: This issue affects the LG L90.