It would be great if one could use DSub on different smartphones / tablets. All using DSub against the same local Subsonic server and all have Jukebox active. And for all of these, the 'currently playing' and active playlist are synced. So let’s say smartphone A starts playing a new album on Jukebox, when looking at tablet B at the currently playing, the same album is selected – and both could control the playback on Jukebox alternatively (pause, resume, skip etc).
I’m currently using squeezebox with multiply clients, but I do want to switch to Subsonic. And this would be a feature I would really miss when switching…