Comment 7 for bug 736097

@bfiller: thats fine but what do you do for apps that exist but dont have a .desktop file or icon they ship ? i.e. desktop-webmail only sets a mime type that makes the system default to a webmail app for all mail relates bits.

and we still support rhythmbox. even though its not shipped by default anywhere it should enable the icon for "listen to music" if it is installed.