Well, as much as I like the idea of a beautiful interface to go on QT4, this non-collapsable behavior is inconsistent to the rest of the environment, and for many users will be convusing, and for the rest of the users it will be annoying because, hey, sometimes, I just want to collapse it for a minute to get it out of the way.
As far as the drawer goes, again, wonderful idea, it's got a lot of potential to be an awesome feature. However, how to open it is really the least of its worries. I think it should open with simply a single click.
I've got plenty more comments about the favorites drawer that I'll post later.
BTW Cary, the read me that came with QT4 said the web site has an address where to send feedback, bug reports, feature requests, etc. But I can't find it. Could you post it here?
Thanks