Thanks for your reply. I assume there is also no such thing as a community SSU for N9?

It'll probably take a while before a suitable Jolla or Ubuntu gadget is out (the second version at least; in my experience, the first product in line is always a buggy proof of concept ).

I see second-hand N9 are relatively cheap, though. Well, another one I'm looking into is Lumia 920. Still checking the reviews; for now I can say the muscles I gained by holding a N900 would come in handy for Lumia 920.