When my wife and I went to Alaska, we shot a lot of video but didn't always take good notes. Back at home, going through our footage, we had trouble identifying some of the glaciers (in some shots, they all looked the same), leading us to check the timestamp on the footage in iMovie, and pull out maps and itineraries to figure out which was which. Now, a new camcorder attachment promises to make it easier to pinpoint your footage. The VMS-X is an attachment for some Sony camcorders that includes a GPS unit. As you shoot, the GPS coordinates are written to the tape. It's not clear how that information is then recovered - hopefully, it's not visually stamped on the footage.