Phil made a quick mockup of one idea for doing this - http://mountainbunker.org/~schatz/kathi/mock-topbar.html Attaching png also.  With all features expanded (forgot to show `phil.../anatomy-...` expands out when you hover): 
Phil made a quick mockup of one idea for doing this - http://mountainbunker.org/~schatz/kathi/mock-topbar.html
Attaching png also.
With all features expanded (forgot to show
phil.../anatomy-...expands out when you hover):