I have the same question, did you ever find an answer?
For quickly adding geo data you can now use G+.
Click on "Photos"; Click on "Albums", Click on an image then select "Photo details".
Select "Add a location" then enter name and address.
Save and done.
EXIF data can be edited using "EXIF Pilot". A free download from colorpilot.
Doug, is not working, check the file. Doesn't give any access for location. Let me know if you have other solution.