Lightroom 4 and Geotagging
Sean McCormack has posted an article about Lightroom 4 and Geotagging using the iOS app, Geotagr. Its ability to save the GPX tracklog to Dropbox is certainly a handy feature.
Previously I have posted about the more convoluted workflow you had to follow with Lightroom 3. With the previous version, you had to use an app, such as Trails (the one I featured), HoudahGeo (or PC equivalent) to merge the tracklog with the images, and only then could you use location with Lightroom.
Trails can be substituted for Geotagr, and it works very well, you have to email the tracklogs to yourself to use them, but it sounds as though Geotagr with its Dropbox integration may be a winner!