I would like to see some means of attaching a safety lanyard to the main unit. I have had the main unit pop out of the base plate several times when putting on my helmet. After this occurred a couple times I started making a habit of thoroughly checking the connection to be sure it wouldn't pop out once I got the helmet on. Well despite checking today, it popped out of its mounting and got run over by a car - I'm not a happy camper.
Lanyard attachment point on the main unit