I'm looking for an app that can take a GPS log (preferabley in NMEA but GPX or anything that GPSBabel can use would do) and a bunch of jpegs taken on my camera and interpolate the location of those photos based on their exif time stamps and write the info back into the exif tags.

On my mac I'd use GPSPhotoLinker, I hear RoboGeo does the same for a PC. Does anyone here know how to do it in the field with N810s?