I saw the A7 at the TYR 2009 Swim Meet of Champions and but I thought is was a Titan. I was very wrong and I should have taken a photo. >.<
What TYR says about the technology: "... TYR has continued to improve upon its proprietary “zoned compression” model of performance suits. The A7 securely locks muscles in, providing precise compression where muscle fatigue can form during exertion, while also allowing range of movement throughout the torso, hips and knees with the BioMark III neoprene. The suit caters to a swimmer’s range of movement while addressing muscle oxygenation, and energy return. ..."
There is information about the dual fabrics they use and two other innovations in regards to "core panel", and a "neck panel" to provide more comfort.