Today I had my first real ride with the Allay air saddle. http://www.allaysaddles.com/line/racingsport.htm
My first try for a few miles yesterday did no leave me too impressed. Today I did 25 miles after moving the saddle about 1cm further back.
The front part with the bladder definitely seems to work as advertised. I definitely felt less "squashed " than normal. The back is much harder than the Terry Fly Gel I was used to. It took a while and during the ride I felt better as time went on. After the ride my "recovery" seemed to be much quicker.
I,me not convinced yet, but also not sending it back either.