As I forecast when I posted the news of Vista  SP1's release the delay in making it widely available has caused some "impatience". Mike Nash has come back with an update on the availability.

• 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.