Uh.. never claimed anything even resembling a MS conspiracy, just my hopes that he's staying long-term, since he's been one of the rocks of stability for the entire team since pretty much the beginning.
(And for the record, this response has got to be one of the most frustrating things I've ever had to type. I've got my mouse on a completely different PC while I do a OS install on it, and so I'm browsing using the tab key. Beating my brains out with a brick would be less painful.)
Try checking the MAME manual at http://docs.mamedev.org