From Here: http://www.theregister.co.uk/2005/08...vista_release/

Microsoft has apparently put a date on the release of the next version of its Windows client, Windows Vista.

Users can expect Windows Vista to ship by November 15, 2006 - just in time for the 2006 holiday shopping season, according to WindowsITPro. Microsoft will no doubt hope to cash-in on a consumer PC buying frenzy during the run up to Christmas.
See the article for full details.