tkman 2.2-4 (i386 binary) in ubuntu precise

 TkMan is a graphical, hypertext manual page and Texinfo browser for
 UNIX. TkMan boasts hypertext links, (optional) outline view of pages
 with a novel information visualization mechanism called Notemarks,
 high quality display and unique interface to Texinfo documents, full
 text search among man pages, incremental and regular expression search
 within pages, robust yellow highlight annotations, a shortcut/hot
 list, lists of all pages in user configurable volumes, a comprehensive
 Preferences panel, man page versioning support, and unmatched online
 text formatting and display quality, among many other features.