Official comment
That is on our feature roadmap directly after basemap caching for offline operation and flight plan management.
We have done the old "holy crap I can't believe we left the SD card at the office again" trick about 20 times...
To upload directly from the app, you will have to be connected to the aircraft so the mobile device can get the images off the drone and it will start uploading them. Once all the data is off the aircraft, it will give you a message that it is safe to disconnect it and the upload will continue.