Linked by Thom Holwerda on Thu 3rd Sep 2009 12:31 UTC
Have you ever been bitten by accidentally loading multiple instances of the same application in GNOME? When you click on the launcher of an already-running application in GNOME, it will load up another instance of the same application, instead of switching to the already running one. This can lead to bugs and other unforeseen behaviour, which of course isn't desirable. In GNOME 3, this issue has been resolved.