Karl Shifflett recently released the latest update to XAML Power Toys.  This is a great VS add-in that makes WPF/Silverlight development much easier and faster.  His blog has a great breakdown of all the features, including a few Silverlight tutorials covering some of the major features.

I came across this great post this morning on Stephen Walther's blog.  He talks about some tips and tricks that you may not know about in Visual Studio.  I've been using a few of these, but there are some here I am glad to know about.

Scott Guthrie and Tim Sneath have very informative posts about all the new features and improvements in this release.  I'm particularly excited about the performance improvements in WPF, as well as the improvements to the WPF designer in Visual Studio.