I just finished reading that same article and you beat me to it
I fell out of my chair when I read the "When will the 64-bit G5 processor Apple recently introduced be available for Windows-based personal computers? I understand it is the start of a whole new wave of faster computers, but I want to stick with Windows."
macdoc - 6.1 is 6, with name rebranding and a few bug fixes. Supposedly you can't run it on a G5 because it can't do sudo little endian code or something like that. Most people don't expect Microsoft to release an update for a while.