Steve Sinchak points to a post by Brad Wardell, that Microsoft has released a preliminary version of the Vista User Experience guidelines:
According to Brad Wardell's blog on JoeUser.com, Microsoft has released a preliminary version of the UX guidelines to help developers write applications that look and take advantage of the new Vista glass user experience.
The UX guidelines are a series of web pages that can be downloaded directly from Microsoft. For those of you that do not want to download the web pages, I have placed all of them up on my web server for everyone to view.
Click Here to view the UX Guidelines
Click Here to download the UX Guidelines form Microsoft
Read Full Story at Brad Wardell's Blog