First off, sorry that this status update is so late--I was side tracked on Wednesday and then the status slipped my mind.
In the last week and a half, there's been a lot of progress in trunk. While we haven't re-implemented everything yet, we're doing pretty well.
You can follow along in your story book with the Trac timeline.
I really appreciate your patience. I think we've got another few days to a week before testing builds is useful where "useful" is defined as "you'll start having a good chance of catching things we don't already know about".