Thanks a lot for this. It makes learning from (public) source code much easier on the eyes.
And it works awesome in gedit in Ubuntu 10.10
The gedit version should work with anything that uses gtksourceview (all versions of gedit and Anjuta, among others)
And if anyone has any bugs, post a report at http://clrhome.co.cc/projects/bugs/
(testing out my new bug report system).
In the bugs page, I got a PHP error, you'd better watch out, I have your FTP name now.