Several days ago I mentioned that I'm working on an idea that combines ANTLR and Windows Workflow to demonstrate "business process authoring for analysts".

In hindsight, that's a pretty bombastic thing to say. So instead, let's just say that the tool I'm working on could be used by semi-technical folk to author executable business processes. There are many other fine tools in this space; mine incorporates a few (IMHO) clever ideas, but I'm not breaking any monumental new ground.

I'm getting closer to having something for public consumption... I'm trying to walk that line between making it solid enough for folks to actually use of it, without crossing every T and dotting every I. I'm very eager for feedback and input, but I want a minimal level of utility before it goes out the door.

So if I've piqued your interest at all, stay tuned.

Oh, and by the way... .NET 3.5 expression trees are FANTASTIC.  Except that they don't serialize without writing your own surrogate. Bah.