avant-window-navigator 0.4.1~bzr822-0ubuntu3 (i386 binary) in ubuntu natty

 Avant-window-navigator (Awn) is a MacOS X like panel for the GNOME Desktop
 written in C. In addition to launchers that can be dragged onto the bar,
 it features a taskbar that behaves similarly to the Mac OSX dock. The window
 navigator uses the composite extension for transparency and other effects.