It has been a few years and it is almost time to end support for Windows Vista SP1. On July 12th, 2011 Windows Vista SP1 will no longer be receiving support. This means assisted support and even security updates. This does not mean that we are stopping support for Windows Vista in general, just Windows Vista with SP1. Windows Vista with SP2 is of course still supported and will continue to receive assisted support and security updates.
The following links contain more information on this subject: