Ok, here's some info for Rob, et al, who may still be unawarez of the kamera sitchiation at The Pearl Room.
I've been to several shows there. I can only share with you what I know concerning the photo ops. Cameras are generally allowed inside afaik. There has only been one instance where I was prohibited from bringing the equip in at all, but generally they're allowed. Wider access is allowed for those with prior permission, like press, etc. In my experience, when attendance is expected to be at half capacity or less the upper level (except for the restrooms) is usually closed off, but those with wider access are allowed to roam free up there. When the upper level is closed off that also means the floor level crowd is more condensed so for me that means trying to take pics from behind a wall of tall cue ball heads. It always seems to happen! Bah.

Temporary barrier fences may have been set up to create proper photo pits at other shows but so far I've never seen one in front of The Pearl Room stage. I did have all-access privileges for the last two outings there so I guess I have an idea what the differences are with and without. Without it you're unable to wander around upstairs if it's roped off, and you're sometimes prohibited from taking pics if you manage to get near the stage and security sees to shooting.
Since it's been stated that the upstairs area will be open for vendors I assume that means a large crowd is expected. If that's the case, and I'm assuming it probably is, there will be a good number of people lined up around the fence up there, which is kick ass because it means the event will be a success, but for me it's sort of futile for good picture taking. So, even if the camera policy is a free-for-all at this event I've decided that it's not worth it for me to schlep 'em along this time. I may take a few pics with the phone camera if a good opportunity arises but otherwise I don't want to spend most of my time trying to squeeze in between people for the shot, therefore I'm going to go to the show and try to enjoy myself without all the pressure.
Besides, any phone camera output should fit right in with my past 2 CPF pics!
