I had a chat with Brian at the Cabin Fever Show and he mentioned that testing will start this summer.
He's working on it and I do not expect any news before the end of the summer or fall.
It's a heck of a complex system and unlike other programs early public beta testing cannot really have any value.
It works... or it will be torn to pieces

. We have to give him time to make it perfect.
Till then we have something which works rather well.
Cheers
Rainer