Neo - As far as I know, there is one guy working on real time shadows and he has nothing to do with making improvements to the Boolean code. Just as the people who build Accurender/Flamingo/nXt may not be the people who handle updates to the file I/O. I dont know for sure but it's a pretty fair assumption that development would be compartmentalized.... Also I wonder which I/O you are referring to? Because I don't see many complaints about improving the exporters. I only see a lot of complaints to improve the mesher. And that is easy to agree on! :P