Microsoft released a Hotfix to accompany the new jQuery VSDoc file.  The Hotfix is now available at the MSDN Code Gallery.  Here's a direct download link for this small (2MB) patch:

http://code.msdn.microsoft.com/KB958502/Release/ProjectReleases.aspx?ReleaseId=1736

This patch is intended for all JavaScript files, not just those related to jQuery.  Generally, Visual Studio will opportunistically look for documentation files related to the script file.  For example, given "mylibrary.js", we will search in the same directory for:

mylibrary-vsdoc.js, then if we don't find it we will search for...
mylibrary.debug.js, then if we don't find it we will search for...
mylibrary.js

This Hotfix is targeted at the latest public Visual Studio release, which today is VS2008 SP1.  If you're using VS2008 you will need to upgrade to SP1 before taking advantage of this patch.
 

The Silverlight Toolkit is a collection of Silverlight controls, components and utilities made available outside the normal Silverlight release cycle. It adds new functionality quickly for designers and developers, and provides the community an efficient way to help shape product development by contributing ideas and bug reports. This first release includes full source code, unit tests, samples and documentation for 12 new controls covering charting, styling, layout, and user input.

The Silverlight Toolkit defines four Quality Bands that describe the stability and finish-level of each component. Below is a summary of where the components currently in the Silverlight Toolkit fall within the quality bands.

• Components in the Preview Quality Band
  • AutoCompleteBox
  • NumericUpDown
  • Viewbox
  • Expander
  • ImplicitStyleManager
  • Charting
    
    
• Components in the Stable Quality Band
  • TreeView
  • DockPanel
  • WrapPanel
  • Label
  • HeaderedContentControl
  • HeaderedItemsControl
    

• Expression Dark
• Expression Light
• Rainier Purple
• Rainier Orange
• Shiny Blue
• Shiny Red