Comment 7 for bug 696568

Johan, I'm not sure which package you say requires network-manager, but doing an apt-get remove on my machine, only the packages network-manager and network-manager-gnome are selected for removal. There's no harm in removing it if you aren't using it, and if you aren't using it, you probably should remove it. Ubuntu One isn't the only thing that will be affected by a false description of connectivity from the service.