I very much like to GeoTag my photos, particularly Landscape and Street photography. I’ve been a great fan of both GeoTagger and GPS Photolinker on the Mac. The first links to a Google Earth plugin to find where you have placed location crosshairs, the second works with GPX track logs to work out where you were when you took a photo. In both cases one has to get Lightroom to re-read the metadata for it to notice the location.
Lightroom 4 Beta has all this functionality built in to the Maps module, which is a big win, but ideally one should still carry a GPS device, such as a Garmin eTrex and download the tracks to synchronise with the photo timestamps. Of course there is also the track data held inside one’s iPhone, but Apple have gone out of their way to make that difficult to access.
Enter GPX Master+ which uses your Dropbox account to synchronise track files to your computer from your iOS device, ready for import into Lightroom 4 (or GPSPhotoLinker) and just makes life that little bit easier. Usual caveats about Battery drain apply — you have about 1 hour, but if like me you have a car charger this is unlikely to be an issue. For all-day use the Garmin E-Trex is still the way to go.