Topic: Last.FM + Cog and Growl
Alright when using Cog to listen to music and submitting tracks to Last.FM via the Last.FM software (Growl enabled on both), I get a growl message notifying me of the change in track from both Cog AND the Last.FM software. Only one is necessary; I'd almost say keep the Last.FM one and disable Cog's as Last.FM would show the album art otherwise.
I consider this a relatively minot bug, though it could easily be a feature request (ie add a tick in preferences under last.fm to disable Cog Growling).