I think we could have a little more respect for Andy's position and wait until the set has been released to ask more questions. It's a very delicate position for him to be in and I can appreciate his reluctance to comment further than he has already. I think we should be thankful for the information he has already provided us with.
I know many people will be mad at me for saying this, but I've seen so many amazing "guests" over at sh.tv been burned never to come back, that I'd hate for this to happen here.
It'll be too late once its released, Simon.. too late to petition for the inclusion of the 5.1's of Meddle & Obscured By Clouds as mentioned previously, that is!
On a more serious note, blathering on at the record label's worked before (and looks like its working for the Alan Parsons Project kickstarter crowdfunding thing right now!)