I've picked up a Fly6 that I'm now running on the rear most of the time. I'll probably look for a front cam or a helmet cam shortly.
My one issue with the Fly6 (older version) is that it does very poorly with low light conditions. What good is a taillight + camera if the camera isn't any good in the dark.
Lots of good high res cameras. I might look at 4K cameras in front. I need to see if a gnat is sitting on the license plate. Actually, I just very much dislike poor quality video, and video that isn't good enough to ID what it was intended to ID.
I had wanted to archive video, but whew... the gigs add up quickly.