I installed Ubuntu Touch on my Nexus 4 a few months ago to compare it to Sailfish OS. It ran reasonably smoothly, but seemed to be missing a bunch of functional

I installed Ubuntu Touch on my Nexus 4 a few months ago to compare it to Sailfish OS. It ran reasonably smoothly, but seemed to be missing a bunch of functionality. I installed a Spotify client only to learn that because Ubuntu Touch pauses background apps, you could only listen to music with the screen on and the app in the foreground. Similarly, if you started a Terminal session, and, say, went to the browser to look up a command, you would return to a completely new Terminal. I uninstalled it a few hours later - I'm willing to put up with a lot in a mobile OS, but a lack of multitasking puts it in 2007 territory.