I know this is a week old, but I've been on vacation for a few days.

I'm glad you found this, it's the project that my team is working on.
A couple comments:
a) For those who don't like the threaded tree view, you're not alone. We have plans in the spec to enable flat and hybrid views in the client, but for the majority of the people who we are trying to help with this, the threaded view was the first priority. The other views will come along as we get farther in to the project.
b) What we've released so far is just a CTP, basically we released a version that was the project at the end of the first sprint of work. Lots more functionality will be coming!
c) While we don't have plans to add C9 directly in our current project plan, I've tried to make the devs keep in mind the idea of supporting other forums that offer a webservice API to allow someone to integrate whatever forums they like.
d) Since the code is available, if you want to make your own version of the tool that would be very cool! We do want people to contribute to the core project, but if you just want to take it and make your own version there's nothing stopping you.
-Jeremy