I've started using the "Queued Post" feature in 3.0.4 for new users. I think it's a great idea and is working fine.

I usually connect to my board using the "View New Posts" URL.

Queued Topics show up properly, with a moderated icon, however topics with queued replies don't show up at all. I think this may be a bug. It doesn't appear to be consistent (or desirable) behavior.