I quote from Windowsvistablog.com:
We’ve heard the feedback and I want to update you on our plans and progress for making SP1 available to our beta participants, our Volume Licensing customers, and our MSDN/TechNet Plus subscribers:
- Late Friday we made SP1 RTM available to individuals and companies who participated in the SP1 beta program
- At the end of this week we will be making the English version of Windows Vista SP1 available to Volume Licensing customers. Other languages will follow soon after
- Later this month, SP1 will be available to MSDN and TechNet Plus subscribers
For broad availability, we are still planning to release in mid-March, since we want to be sure that everyone has the smoothest experience possible.
I want to be super-clear on one point: Windows Vista SP1 is final. It has been fully released to manufacturing and we do not plan to make any changes to the SP1 code prior to public availability. We are confident in the quality of Windows Vista SP1 and know that it will help improve our customers’ experiences with Windows Vista.
Our goal here is to address the needs of our customers while delivering the best experience. Please keep the comments coming. We are listening!