When you get home, you simply pop the receiver unit into the base station, put your camera's memory card into the slot on the base unit, and press the "Sync" button to start adding the GPS data to your pictures. There are a couple of quick options to confirm, but the actual process is very quick and simple. If for some reason it fails to tag any pictures it will tell you, but I only had this happen once on several expeditions.
The PhotoFinder doesn't come supplied with any software of its own, but instead relies on Google Picasa and Google Earth, both of which are available for free download. Both programs are well-proven, and the Geotagging feature on Picasa works flawlessly with the EXIF GPS data recorded by the PhotoFinder, automatically logging the position at which the photo was taken in Google Earth. The accuracy is quite impressive, hitting the correct position to within about 5-10 metres. The improved performance of the receiver means fewer missed locations, and the only time I found that the unit failed to record data was when I was either indoors or surrounded by tall buildings.
The ATP PhotoFinder Mini is a great little gadget, the perfect tool for anyone who's into Geotagging or who just wants to record the location of their photos, for example for birdwatching or exploration. It is small and light enough to take anywhere, attractively designed and - apart from that rubber cover - well made. It is quite easy to use and performs well in most outdoor locations.