Preview release for OSX users. Install instructions included inside .dmg - please read.
Windows users please continue to use v1.0 on the releases page.
If you have issues with tracks not playing (no audio at all), leave it for a few minutes and then try joining a different room or re-launching the app. There seems to be an issue on first launch as libspotify syncs your playlists, but this issue sorts itself out after a short while.