Just today, we had to clean up a mess on our development environment, because we wanted to test an application which was provided to us in a Solution Package.
Only after 1-click-publishing the solution package through service center did we notice that this solution was made in 5.1 instead of 6.0, and that it included several eSpaces and Extenstions we use in other applications. (RichWidgets, some of its references, Themes etc.)
Needless to say, lots of dependencies were instantly broken after this publish. Now, we had to check this solution package and delete/rollback the individual components, and then republish ALL other applications to restore all references and dependencies.
I would like to see an option in ServiceCenter to be able to rollback such a mistake in one simple action. Something like "Rollback last publish".