Not yet, not in my download list, at least. I can’t find any authoritative statement indicating whether it will ever be available as an MSDN download, and if going off of previous versions is any indication, it never will be. I’m interested to see what development options exist; I haven’t been able to find anything yet. There’s a definite paucity of information and a lack of responsiveness on the MacBU side of things. I’m hoping that changes over time.
