Frameset : longdesc

does anyone have a reference to a (preferrably: free) web-UA that makes use of
the frameste 'longdesc' attribute?



<excerpt>
  <source>
  http://www.w3.org/WAI/GL/WCAG10-HTML-TECHS/#frame-text-equivalent
  </source>
  <contents>

 Describe the purpose of frames and how frames relate to each other if it
     is not obvious by frame titles alone.

	<elipses/>

	frameset-desc.html might say something like:

	<elipses/>

   </contents>

</excerpt>