This is really cool, but disappointed that they didn't have the courage to use a lightning port instead of this dumb old AUX input.
So this is different from the other comments about copyright, but when I've had people ask for this, I ask them what exactly they want, and I've discovered that most people don't want the raw footage, they basically want a modern form of a long video documenting their wedding, like a home video. So I offer instead a really long video with all the unedited takes one after the other, but then take out the beginning of clips where I often have my camera facing the ground, and take out parts where I'm talking to someone in the shot (it's endearing when it's your family member shooting, but not when it's your videographer). This could take a long time, so instead of doing it at the end, I mark in and out points of all my clips when I first start going through stuff so I have an hour-ish length sequence of everything that could ever be used in the final 3-5 minute video, which I then go through to start selecting what will be in the final, shorter video. It ends up helping me in the long run so I don't have to go through clips over and over again, and at the same time gives them something they want (I doubt they want to go through and watch the different videos, they want something they can pull up and watch for an hour with their families most of the time) without them thinking I'm a bad shooter just because I send them clips that are accidental record button toggling or something.