Kicker is the main panel used in K Desktop Environment 3 and earlier. Together with KDesktop, it forms the graphical shell. It can be customized by the user. By default, it has the K Menu, a Desktop Access button, a Home button, a Konqueror button, a Kontact button, and a Help button. Wikipedia
GlassPanels
Kicker Panel
It's only for KDE 3.x and GNOME, not for KDE 4.x.
aidamos