... October 22 2009
Source: http://windowsteamblog.com/blogs/windows7/archive/2009/06/02/the-date-fo... [2]
Links:
[1] http://linux.philosweb.com/drupal/category/it/softwareosmicrosoft
[2] http://windowsteamblog.com/blogs/windows7/archive/2009/06/02/the-date-for-general-availability-ga-of-windows-7-is.aspx