yeah, they went live today. On the main site
http://www.uaudio.com/ they have tons of info about it. It's amazing to think that just one of their quad cards will be more than 2.5x more powerful than my entire 4 card set. Also they now have load balancing and low latency enhancements.
I have quite a few of their plugins right now, but can't wait to get a hold of the Empirical Labs Fatso, Moog and Neve stuff.