well, I like to hike. If we take pics as we are walking in a national forest or while geocaching ... we could do things like ... use a map as the background with an arrow pointing to where we took each pic and a line showing our path. Shouldn't be too hard to put GPS electronics in a camera.
Of, if we ever wanted to go back to a certain place again, we would know exactly where it was just by pulling up the pic, get the position data, download it to the GPS and take off ...
or BETTER ... if YOU took a pic of some awesome place and sent me the pic, I could find that exact location later just from the data in it.
Pabst Blue Ribbon - The beer that made Gerlach famous.