Comment 2 for bug 460483

I confess I don't know which one is more adequate for being the default behavior, either (closing to tray or closing completely). But whatever the choice is, ALL applications should follow it. The inconsistency in the current behavior is very bad, usability-wise: people should remember that clicking on the close button will NOT close Empathy and Gwibber, but WILL close Evolution.

Furthermore, doesn't having to leave the app open defeats the purpose of a notification applet? It's bearable for me because I use Docky and can minimize Evolution to its launcher, which is on screen anyway. But people who use the regular Gnome taskbar, however, would be forced to keep Evolution exposed in it. (most people I ask about this says that the workaround is to leave Evolution in another workspace, hardly an optimal solution)