Open Source Vanilla Forum Software to Get Integrated Login Support?

Oh, you. Lil Vanilla.
Two projects I'm working on right now require a nice forum/ discussion system. I've been digging the
Lussomo Vanilla Forum software by
Mark Sullivan for a while now. The user interface is the best forum stuff I've seen, with a really light way of drawing the ubiquitious forum tables. It also keeps the software branding toned town, and doesn't overload the admin and users with lots of noise for features that are rarely accessed. (Also, not only is it easy to install on Linux, but it installs without hacks on Windows XP.)
But a downside of Vanilla is its inability, at least via formal documentation, to integrate with other login systems within an environment. I'd love to use it with with either WordPress logins in certain sites, or with LDAP. As of today, you can't. This doesn't totally turn me off, but it bugs me.
But I was reading the forums, seeing if anybody had some hacks, and I read this promising note from Mark:
I am in talks with a client to do some work on Vanilla that will make it possible to have the user authentication separated from vanilla a little bit (making things like integrating vanilla with an existing login system a lot easier). In order to accomplish this, I will need to rush the development of Vanilla 0.9.3. Further to that point, the client's deadline is very short (mid-November from what I understand at this point), so it looks like the next rev will happen right around when I was predicting.
Very cool. It was part of a
larger thread about moving the GPL'd project into CVS or SVN.