You come to these conclusions based on the fact that Apple hasn't said anything more about the nMP's release? Wow. The fact that Apple announced as much as they have about the nMP is virtually unprecedented. The fact they haven't said more isn't indicative of anything. Many, if not all, of their new product releases go like this. We won't hear any more from them about it until the nMP can be ordered.Because there is an unresolved problem somewhere. It may be at Apple or it may be with a supplier. In any case Apple does not have a reliable estimate of when that problem will be resolved. If they did have a good estimate they could set and announce a date with a reasonable expectation of meeting it. I can not imagine a reason why failing to set a date would be to Apple's advantage so I must assume this condition is imposed on them.
Their website still says "Coming in December." There's no reason to think that's changed. I could see certain configurations being delayed if there's a CPU shortage, but I think it's also just as likely that Apple's is first in line to get the chips -- which has happened before. I bet at a minimum the quad- and hex-core configurations will ship this month.