Whats the deal with Kickoff (the new K Menu) ?
During the development of KDE 4.0, different approaches for a K menu (application launcher) were tried. Some projects were ambitious but there was no way they could be completed on time. At the time, one developer ported SUSE Linux’s application launcher (Kickoff) to the new KDE desktop architecture. As it was the most ready and feature complete (not to mention the product of usability testing) it was chosen to be the default menu. If you don’t like it, the traditional K-menu is available as well – right-click onto the K Menu to find an option “traditional style”. Also, some alternative menu systems have been announced and some, such as Lancelot, are ready for daily usage and offer exciting new features.