This looks promising I wonder if it will ever make it to motorcycle helmets. I consists of a helmet with an "inner" helmet/liner that rotates in channels to help prevent a broken neck upon impact with the ground or other hard surface. Looks pretty slick to me and I hope it transitions over to motorcycling, only concern would be weight but as they make the system for hockey, mountain biking, snowboarding and football helmets the weight can't be to bad I assume. Below is the site. Shows movies on how it works and stuff. I'd sport one if it came across.
http://www.pronecktor.com/index.php?...d_movie=thumb3
http://www.pronecktor.com/index.php?...d_movie=thumb3