AquaLess used the be only GUI manpage reader that would actually work on Mac OS X, due to a long-standing bug in groff rendering that was not fixed under X11.app until 10.3.3 (or that's when I noticed the fix was in, anyway.) Doing a <code>man unixutility | aqualess</code> in Terminal is so automatic I don't think about it -- prestidigitation handles that automatically. I'm not really sure what the comment here about not formatting refers to; I have never seen a case where there's a significant deviation from the text produced directly in the Terminal window. AquaLess is a workhorse here. I use it on every foray into the old command line interface.