http://www.withinwindows.com/wp-cont...nitorW7SP1.pngQuote:
Similar to previous external beta service pack rollouts, Microsoft has enabled – via updates you already installed – a beta ‘candidacy check’ within its Windows Update software. Just like Windows Vista, a registry key and value pair need to be added prior to being authorized to download the new software.
from Within Windows
Wow MS is really working fast on Win7 SP1