WindowShade X 5.0.2
WindowShade X is a haxie that brings WindowShade functionality into Mac OS X.
When you double-click a window title or try to minimize a window, it will do action which can be different from the default Mac OS X behavior (putting the window in the Dock). WindowShade X has 5 alternative minimize styles: WindowShade, Minimize-In-Place, Make Window Transparent, Float on Top, Hide Application, and Do Nothing.
Mac OS X 10.5 with Intel chipset. Rosetta required, too.