Well, I downloaded it. Great, it put iTunes in the Applications folder, so i moved it into my Multimedia sub-folder. Suddenly, SU lists iTunes 3.0.1 again! If I move iTunes back into the root Applications folder, the SU iTunes listing goes away. Did this happen before? I don't remember it doing so.
So now I have to manually disable all application updates that I decide to move into sub-folders. Come on, Apple... how hard can it be to RECOGNIZE SUBFOLDERS???
This is the third major release of this OS, and not only is the installer still not fixed, but now Software Update seems to be taking a brain-dead approach to figuring out which applications are installed.