GPS Tagging Photos

At some point in the future probably all of our digital photos will be tagged with location data. Where a photo was taken is pretty important now, and will future-proof your photos, but how do you do it? There are a few different devices out there that carry with you when shooting that will records your location and then later apply that (via timestamp) to the pictures you load onto your computer. The ATP PhotoFinder is that type of device, except it's the first one I've seen with a card reader built into it that will actually take your camera's card and apply the geo-location data to the images directly. ($89, via Uncrate)