Microsoft has silently re-branded the PlaysForSure campaign to Certified for Windows Vista.
The PlaysForSure branding was originally chosen to make it easy to find digital media stores and devices that work together. In an effort to confuse the world, Microsoft has changed this to be part of the Windows Certification program so if you purchase music online you know it's certified for Vista - yay!
Nice and confusing for the ordinary consumer.
View: Microsoft's Announcement