@jeffalyanak @trashHeap The PinePhone is not powerful. We are, however, in luck -- before Canonical dropped Ubuntu Touch and UBPorts picked up the development, the hardware used as reference was VERY similar to what the PinePhone is. In result, the live demo I saw at FOSDEM had really nice and smooth performance. I cannot say how plasma or the other OS' / front-ends will perform, but I think that there is a good chance that many OS' will run well.
And while we did some optimisation of the Ubuntu Touch stack, there's still plenty of work that could be done there.
Some of which we've since done in Mir, so when UBports manages to update to Mir 1.0 (or later) they'll get a nice performance boost.
(It looks like that'll be soon; the new Mir broke the Android graphics platform that the phones use, but we think the underlying cause has been found and fixed)