Houdah Software has announced HoudahGeo 2.9, the one-stop photo geocoding solution for the Mac. HoudahGeo 2.9 adds support for iPhoto libraries which reference images located on external drives. HoudahGeo 2.9 also improves compatibility with Mac OS X 10.7 Lion. With HoudahGeo you may pin photos to locations where they were taken. Just like an expensive GPS camera, HoudahGeo may store latitude, longitude and altitude information right within the image file – invisibly with no loss of quality.