A simple front-end to the GNU source-highlight project, allowing you to browse through your source code in color. You must have GNU source-highlight installed.
Licensed through the GPL. Requires Mac OS X 10.4.
To install: download the application .zip file below and drag-and-drop into your Applications folder. You must have source-highlight installed (I suggest using DarwinPorts or fink), but you can configure the path to the executable in the Preferences.
Screenshot: