BetaCreator is a free tool for the creation of rock climbing route guides/beta photos.
See a demo at http://nemophrost.github.com/betacreator/
After checking out the git repo you will need to open a command line terminal
and go to the directory: <project_root>/js
From there you will need to checkout the Google Closure Library (requires Subversion) with the following command:
svn checkout http://closure-library.googlecode.com/svn/trunk/ closure
Afterwards you should have the goog directory at: <project_root>/js/closure/closure/goog