The Auto Geotagger add-on, when installed and turned on, utilizes a complex series of mechanisms in its interaction with GPSToday to maximize the chances of every picture you take getting geotagged, as accurately as 
possible, and as immediately as possible.
If a recent GPS fix is available within the specified time window, GeoTagger will use it to tag a new picture, typically within ten seconds of the picture being taken.
Otherwise, the GeoTagger signals GPSToday to obtain a new quickfix. If GPSToday is able to obtain a new fix within the specified time window, it will be used to tag recently taken pictures.

Remember:
i) You must stop the Auto Geotagger if you want to manually geotag specific pictures.
ii) If you intend to upload geotagged pictures to Flickr, remember to uncheck the "Hide Exif Data"
option in Flickr privacy settings before uploading.
iii) If the current GPS fix is correct but out-of-date as per the specified auto-tagging time window, you can make it "current" again by synchronizing the map position to the GPS position, and tapping on "Set as my location" in the Map>More menu.
