I just saw these posted on usenet. They appear to be another set of "megawidgets", now with LTK bindings. http://coding.derkeiler.com/Archive/Lisp/comp.lang.lisp/2009-11/msg00208.htm...
Or go directly to the project and lisp docs at http://gestaltitems.sourceforge.net/ http://gestaltitems.sourceforge.net/lisp/index.html
Later, Daniel