Not that I can speak for Parallels, but just to try and clarify something...
I am sure that Parallels knows that having to reactivate Windows each time you switch back and forth between running Windows in the VM and Boot Camp is not acceptable. That is why their approach to it involves creating the separate hardware profiles you see at the Windows boot screen.
Those profiles were originally designed mostly for laptop users who had docking stations. One profile would be for the laptop when on the go, and the second profile would be for when you plug into a docking station with extra ports, extra hard drives, connected printers, etc. Windows would be intelligent enough to use the extra profile without complaining about activation or reconfiguring your hardware every time you docked/undocked your laptop.
For whatever reason, Parallels' current implementation of the second profile (the one for their VM, since the original profile was for Boot Camp directly) is clearly broken for some users. It may not have come up during their testing, but now that it's "out in the wild" it's an issue that many are seeing.
My point is this...I have no doubt that Parallels did NOT intentionally release 3036 (even as a beta) knowing that the switch between Boot Camp and VM was going to REQUIRE a reactivation every single time. That would be ridiculous. I am sure this issue came as a surprise to them, and I'm sure they agree with everyone that it's a serious bug that needs to be resolved. So let's just give them a chance to figure out the cause, and it will be fixed.
Like everyone else here, I would be happier if we got more detailed reports from Parallels. Something along the lines of:
"Thanks for all of your reports on build 3036. We have duplicated and identified the cause of the following 6 major issues: <insert issues here>. Our team is working on these issues, and further info will be released as soon as possible. For now, we no longer need additional reports pointing out these specific issues, but please bring other issues to our attention."
Something like that might prevent 25 new topics about the same exact problem being repeated over and over again. But we keep asking Parallels to be more responsive and vocal on these forums, and while some (Andrew in particular) do their best to communicate, it seems the company as a whole is more focused on silently fixing issues than spending too much time talking about them here. So since actions speak louder than words, I will stop grumbling about the lack of "talk" here, and be confident that Parallels is working hard on the next build.
-- Ensoniq