Microsoft has released a set of documents for Vista SP1.
This is the most comprehensive amount of information released so far. There are 5 documents in total. They are:
-Deployment guide for Vista SP1
-Enterprise Guidance for Application Compatibility Testing
-Hotfixes and Security updates
-Notable Changes in Windows Vista
-Overview of Windows Vista SP1
Download and open the hotfixes document. I had no idea it would contain almost 70 pages of hotfixes. Haven’t had a chance to read through the whole thing…so I am not sure if they have zapped some of my major pet peeves.
They all can be downloaded from here