They talk a good talk and the science seems sound, but there is just no way I am trusting my life to an inflatable pillow. Sorry.
Of course, mine is a hopefully unique perspective on such things. I had to buy bicycle helmets quite frequently as a child, not because I outgrew them, but because I damaged/destroyed them. I still remember the most egregious example – mostly because it was possibly the only time an ambulance was called due to my antics – wherein the helmet was completely destroyed, I had a good half-a-baseball-sized swelling on the opposite side of my head from the impact, and the responding paramedics told my parents that if I had not been wearing the helmet, I would be dead.
If you ever want to ensure your child wears bicycle helmets for the rest of his or her life, that is damned good way to do it.
So… yeah, cool idea, it is kind of awesome how it is the culmination of north of five years of data collection and examination, it definitely has that “welcome to the future” vibe, what with airbags for your head and all, and I totally like the whole “black box” concept which allows the company, and thus all other collars out there, to learn from accidents. But I think I will stick with foam and plastic and whatnot for the time being.