Just wondering what version of the plugin are you using as I have found that I cant event save to the Gallery. I have managed to save file on the SD card but really want it to appear in the users gallery.
Posted my issue on stack overflow http://stackoverflow.com/questions/34149939/ngcordova-saving-photo-to-gallery
Tried changing my settings to NATIVE_URI etc as your example but no Joy.
I will also have the need to record EXIF data with the images so hope someone can answer your post.
Cheers
Noticed bug logged here for exif data