http://reviews.cnet.com/Windows_Vista_RTM/4505-3672_7-32137426.html"On Wednesday, November 8, 2006, Microsoft released its new operating system, Windows Vista, to hardware manufacturers, marking the end of the development phase and the beginning of the distribution phase. For more than a year, we have seen various builds, most of them private but some public, with ever-increasing build numbers. The final number is build 6000 (with a string of lesser numbers following)."
Yay, that means that within a week I'll have my copy of Vista from MSDN Subscriber Downloads.