I read about this in Scuba Diving Magazine and recently saw one at my LDS. It looks very streamlined, as the bladder actually wraps around the tank. I'm wondering how stable it is in the water though, and what it's like in certain conditions...like when you roll of the back of a boat and the first thing to hit the water is your tank...or how it makes you float on the surface.
10 New BCs - Scuba Diving Magazine
10 New BCs - Scuba Diving Magazine