Sorry for the slow response...
Sorry but the slow response to all the comments on security. I ended up out of town for most of last week and had way less time to work on this than I expected. We're finishing up a summary answer to the questions & comments and should have that posted by EOD tomorrow.
I've realized I've not yet given an overview of Access 12, so after the follow-up to the security post, I'll be whipping up an overview, and we can start to look at all the new work. Thanks for your patience, and again, sorry to have fallen off the face of the earth.