The code to display maps in EOG for you geotagged photos is now merged into EOG Plugins.
You can grabe the code there:
svn co http://svn.gnome.org/svn/eog-plugins/trunk eog-plugin
To build it, you will need libchamplain and libchamplain 0.2.2 or later.
You can find 2 sample geotagged images on the bugzilla.