The PM was presented in Chicago as well.
It is scheduled to be released sometime this month, but I believe they will be going slowly to ramp up. In addition to the software, there is training and setup with the clearinghouse that can take some time.
It is based on MedFx, but has several improvements. It looks good from what I have seen.
If you are interested, it may be worth calling AC and find out a time frame. My understanding is that they want to start with smaller practices first to get training system running smoothly.