I tried to figure out for a long long time to inspect my flight route after a session and display it on Google Maps.  Than the DJI-SDK were published and I've found the Class DJIMainControllerSystemState (http://dev.dji.com/api_doc/android) or GPSTracker which does exactly what I was looking for. It's might be maybe no big deal to use the service infrastructure of Android and write the main controller state to the internal sd-card during the time the propellers are running and would be more informative than DJI_LOG directory now  includes. I would have write this function by myself but I haven't the sourcecode of the DJI Vision app and I think I wouldn't be the only which would appreciate that much. They could make a lot of customer happy when this function would be included in the DJI Vision App.

Happy Landings

that's exactly what I was thinking too.
A flight log to be analyzed would be really useful (both for users and even for DJI to analyze and learn from that data - assuming the users would agree to share their data).