Thanks Merlijn!
I got a question about the N900 PowerVR drivers: are you able to tell
whether the lastest update brings all what is needed to run Mir on the N900?
Here's a post listing the required interfaces for running Mir:
https://discourse.ubuntu.com/t/mir-graphics-support/13185
I'm quite inexperienced with the graphical APIs, so I can't tell by
myself what is missing and what is there already. :-)
In a future life, I'd like to have Ubuntu Touch running on my N900 :-)
(it runs on the PinePhone, FWIW)
Ciao,
Alberto