And you mentioned the purchase of SnowPulse by Mammut recently of course. Also I see BCA got approval for their Float bags : http://www.backcountryaccess.com/2011/10/17/bca-float-airbags-get-ce-approval-land-in-europe/
These are all good products, it’s great to see choice in the market. I like the fact the new entrants aren’t using pyrotechnics for triggers, it’s simple, and therefore likely to be cheaper, easier to travel with and refill is easier. Maybe easier refill opens up some training possibilities although I think it’s still recommended to get a bag checked if it’s deployed. I like the pressure gauge on the BCA gear, I do like things I can check myself.
The obvious danger is that for the skier/boarder with deep pockets this looks like a rational replacement for safe practice.
incidentally..... airbags work on inverse segregation a.k.a the “Brazil nut effect” which was on recent QI program as a “nobody knows” ... so that’s Quite Interesting