K Menu with Gnome folder and extra icons for KDE 3.2 or later.
If you install both KDE and Gnome then K Menu will become a mess with overpopulated submenus. Some distributions try to solve this by hiding many Gnome apps in KDE and most KDE apps in Gnome. I do not like that. I want to access Gnome apps in KDE and KDE apps in Gnome. So this is my attempt to both maintain desktop interoperability and unmess the menus.
Why should one install both KDE and Gnome at all? You might share your machine with somebody who prefers the other desktop, or you might be a desktop junky like I am.