Hi Mick,
thank for clearing this out. It seems that having this the way you're looking at it right now will loose a lot of impact and input fro a lot of other sources has Mark referred here. If we take in to account that most of the people here are using Lightroom and were drag to it over beta testing then I feel it should be open o anyone this PM+, also would attract a lot more people to the software and the feedback would be from the newbie to the Pro.
I understand your point of view on the closed beta, but as Brendan referred here, I'm also one of the people who do not like PM6 either for the slowness and for the new UI design that I never got any beta to test and give my opinions on it. I'm also a pro photographer using PPM from longtime ago and v6 is the only version I feel it could have been a great release if there were sent any beta to us to test it out instead of pushing us to buy a new version without any really new features and paying a lot of money for it, not to mentioned the promised and advertised speed that I never got and the ugly UI ala 1989. I also believe that the new PM6 did not came to help us out, for me, it came out to keep us out! So much time waiting for a new version that it backfired
I think you should put PM+ as a full beta so you can get the max input from everyone just like Lightroom did on the first beta versions and by the looks of it on the forum you're still struggling hard with the database, maybe more opinions would ease out the things as most of the PM users never got or use a database to begin with.
My 2 cents on this matter, I'm still on hold for PM6 until you guys change the way the UI looks and the so promised "lighting speed" on Mac.