This app do the job

with unlocked features, this app on your « idevice" can overlay your video with maps from openstreetmap and satellite view. Great
Unfortunately the geoinformation (gps info) are not merged in the mov file so you can’t use them outside of the app in the iphone (on your computer for exemple) and extract them.

Il could be a great addition to be able to export the gps track

4 stars

gc42 about Vidometer, v3.2