PS audio BHK Siganature...anyone heard it yet?

Sounds like an interesting a-b hybrid design. I watched the video on the PS Audio website and got curious. I have always liked the value of their products. Anyone seen it yet?
The first stereo beta units have been in the testers' hands for a week or two, and you can read their feedback thus far in the PS Audio forums. The beta mono amps are expected to ship shortly. Once feedback is completed from the beta testers and any needed changes are made, then they will go into standard production. Initial reports seem very favorable, but comments are only from a few testers so far.