Nothing on the air yet. Scheduled cutover date is still August 2013, so I'd be very surprised if control channels didn't start popping up in the 1st quarter of 2012...so I don't know what the status on that system is.
The newsletters in this link were very informative. Thanks for digging that site up. It mentions a lot of the site locations, and shows build out pictures, as well as mentions names. That's a pretty impressive project, and considering it serves one of our nation's largest cities, it should be. I hope this system works flawlessly. These wide area, linked P25 systems impress me.