"The basic idea behind Mac OS X's Dock is that when you need an
application, you click on its icon on an on-screen bar, and the
application is launched (if it has not been yet) or switched to (if
it has). Stefano Zingarini has borrowed this concept for KXDocker,
a KDE variation of OS X's Dock (which is also usable with GNOME and
other desktop environments).
"KXDocker 1.1.4a is more attractive than standard task managers.
It displays every application as a single icon on a dock on the
bottom border of the screen..."