Comment Microsoft Hostility (Score 2, Insightful) 149
Uh huh. So what's wrong with AD?
Microsoft seems to design their protocols to be as hostile as possible to 'other' OSs (without being openly anti-competitive). This is good for their business plan but bad for users. A side effect of this is (like another comment in this thread noted), that it's really difficult to expand the system beyond what Microsoft wants you to be able to do.
Given that you're using mostly 'other' operating systems, I think it would be a big mistake to make the bulk of your systems beholden to a hostile mistress.