Microsoft are likely to hit final Vista product with a deadline of Nov, 2 , 2006. So now we are preety sure that we can get the hands on experience on RTM of Windows Vista in this year. Earlier the release date was scheduled on June,2006 but testing staff for Vista has proposed a new date for it
Read the complete post at http://dotnetpathak.blogspot.com/2006/01/windows-vista-release-date-nov-2-2006_16.html