Semi, I'm sure there's some personal animosity involved, but the main thing to me is that McNealy has many other reasons to "be the rebel" and take on Intel face-to-face. Some of it is ego, some of it is politics, and some of it is just business. I don't expect any of that to change once Otellini becomes CEO.
By the way, the replacing of Sun/Solaris with WinNT seems more like a Grove thing, not a Barrett thing. (I would have pointed the finger at Albert Yu, but you were talking about manufacturing, which wasn't Albert's domain.) After all, wasn't it Grove who kicked out the IBM contractors after IBM did a "demonstration" of how serious the FDIV bug was?
Tenchu