Timely reality check from Security Curve; read the full post. BTW PatchGuard (kernel patch protection) has been in 64-bit Windows for the last ~2 years.
So, when I first read the press coverage of this, it sure sounded to me like Microsoft was being anti-competitive; but then I decided to educate myself on the various features that are under discussion - now I have a different opinion. Now I think that McAfee and Symantec are grandstanding. Why's that, you ask? Well, here's my take on this stuff: