Trust me, when I say that the Mac OS X version is high on my list. I use a Mac Book Pro for all my development. The problem is that we have commitments for Windows XP/XPe/Vista that have to be met. Once I meet these commitments, then I will be focusing on the engine components for Mac OS X. I will make sure you are one of the first to get a test copy. I will need a lot of help and feedback.