>I think this is how MSFT will prevent its tools from being used on other platforms (not via the EULA) in the future. MSFT will simply incorporate so many OS specific features that it will only run on MSFT's OSs. No more legal worries from that point on...

I don't know about no more legal worries (I'm thinking of the original IE semi-technical legal case by DOJ and states) - but you may be right, it could be *less* legal worries. I might do the same, in fact, were I in their shoes, with the linux issue and whatnot - heck, simply getting clients to pony up for regular upgrades is a big deal nowadays, and a little "tech-enforcement" boost seems to be the coming practice...