The Ubuntu One music store and free software for profit

The Ubuntu One Music store isn't patched into rhythmbox, it's actually a
standalone plugin that can be enabled/disabled/removed/reinstalled like any
other RB plugin. In the distribution that package name is "rhythmbox-
ubuntuone-music-store"

The source code to the plugin is available here: https://code.launchpad.net/rhythmbox-ubuntuone-music-store