Last weekend I was an idiot and left my GPS Photo Tracker on the hood of the truck while Donna and I left to go shoot some pictures. After searching our yard and neighbors yards we came up empty so I ordered a replacement and it arrived yesterday. I use this to record a track log while Donna and I are out shooting and then use RoboGEO software to embed the GPS information into the EXIF data stored in the image. Once that is done I can upload the photo to flickr and it will automatically appear on a map showing the exact location where the photo was taken. Another cool feature is when your photos contain the GPS information is the Photo Album on our iPod Touch and iPad have the ability to show a map where the photos were taken. I have used this model of GPS tracker for a couple of years now and it has always performed flawlessly. It uses 3 AAA batteries and easily records a full day of our travels to the log files it creates. What I normally do is turn it on before we leave the house and then put in into a holder on the front strap of my backpack and there it'll sit all day dutifully logging our position while Donna and I are out shooting photos. If you want one the link below will take you to Amazon where you can buy it and I'll get a small commission.