An interesting post appeared today in the Planet KDE news feeds. Introducing Homerun almost gave me a mild coronary until I realized it was an add-on. Homerun gives KDE that GNOME 3-like application launcher.
"Homerun is a fullscreen launcher with content organized in tabs. A tab is composed of several "sources". A source can provide one or more sections to a tab. Homerun comes with a few built-in sources, but custom sources can be written using libhomerun."
rest here