Frank,
The Copenhagen blog was mentioned in a previous thread: https://openacs.org/forums/message-view?message_id=92017
I know many people are still at the conference (lucky them!) - ultimately, I need these changes in the site I'm working on, whether or not they're of general interest or end up being incorporated.
My feeling is that it would nice for the html cranked out of ad_form to have accessibility features (at least the easy ones) included by default.