David Goldwasser, contributor to the Digital Photography Hacks, at O'Reilly MacDevCenter.com:
Do you ever look back through your vacation photos and wonder where all of the photos were taken? What if there was a way to have all those images automatically show up as pins on a map or an aerial photograph? It may seem too good to be true, but it can be done. No mirrors or smoke; it's just making use of existing GPS technology. [..]
Final Thoughts
As you can see, there's a little hacking involved for Mac-based GPS photo linking. But the results can be quite impressive. If you've been working with these tools, please post a TalkBack below with any tips that you've learned. If there is a Mac software developer out there with some spare time (OK, but I can wish), I would be excited to see a native Mac-based solution for GPS photo linking. My sense is that there would be many thankful Mac photographers. (Link)