Macrobyte Resources is about to release a new version of Conversant that runs on top of Radio Userland, according to Brian Carnell. He's using the software, a competitor of sorts to Manila, to publish his one-man, 1,000-page site AnimalRights.Net.
Were I sneaky, I would post this link in your comment box:
Hope you'll consider using it. I pay Macrobyte for my hosting, too, and I love the thing. It will be interesting to see how the developer perspective compares to the end user perspective.