Hello,
I've not yet upgraded to the latest firmware, but there is something missing for me : the ability to save the image settings, especially flip/mirror.
Right now my image Setup -> image settings are reset at each reboot (there is no "save settings" button like for the others settings).
As I need to flip the image, each time there is a power failure I get my videos flipped.
If not already covered, I guess it would make sense to at least save the flip/mirror settings internally and recover them at restart.