I went to a Wilson demo today at PGA Tour Superstore and the Wilson rep had one of the 2012 Pro Opens. I spoke to him about it and he said it was exactly the same. I asked more about details like grommits, etc. and he said as far as he knew it was simply an updated paint job. Exact same technology, and maybe this is why it is at $159.99.
I got to hit with it, but the strings were NXT and a little worn, and we were hitting with a machine in a line of about 15 people at the back of the court (about 3 feet off the court) and the machine was going deep. Also there were a lot of pretty girls making me nervous haha. Anyways it felt the same. Felt real nice and smooth. I can imagine with my string setup it would be just like my 2011 Pro Open. It hit better than the Juice 100 to me.
I took a picture of the stats on the racket: