...Using time and location recordings from Sony’s GPS-CS1 GPS device and the time stamp from a Sony digital still camera or camcorder, photo buffs can plot their digital images to a map and pinpoint exactly where they’ve been...
There is a piece of free software called "QuakeMap" that does essentially the same thing. It takes track information from your GPS, like a Garmin or a Magellan, and photos from your digital camera and shows the track of where you've been on aerial photos similar to GoogleEarth. It shows small icons where all of the pictures were taken and if you hover the mouse over them, it pops up the photograph(s) that was taken at that location. I give it a "100" on the Geek-O-Meter. Loads of fun.