Based on recent contacts between me and another I have decided to spend some more time on PublishEngine.Net.
I think that as I spend more time on a working prototype and get it out there more people will be interested.
We'll see. Meanwhile, I am working on a solution using CSLA.Net to handle the business objects. I am looking for a simpler way to deal with the UI from CSLA.Net. It works, but not as easily as I would like.
I am going to try LINQ against the Business Objects once I get a chance and have an opportunity to research what others have found out.