One of the major changes in VS 2010 is the fact that its UI was built using WPF. We in the WPF team had to do a fair amount of work to support the migration of the VS UI to WPF. Paul Harrington’s series on WPF in Visual Studio 2010 has all the details.
There is, however, a lot more that is new and fresh in WPF 4 in addition to VS-related improvements.
Here is a list of a few blog posts that walk through the new features:
Jossef Goldberg, our Deployment and Performance PM, has a couple of posts on deployment (What’s new in .NET Framework 4 Client Profile RTM) and performance (What’s New for Performance in WPF in .NET 4).
Chipalo Street, our Text PM, has several blog entries on text clarity – a big area of investment for WPF 4. I recommend starting with the Additional WPF Text Clarity Improvements post.
Lester Lobo, the XAML SDET Lead for .NET 4, has a great series of posts on new WPF 4 features.
Enjoy WPF 4 and VS 2010!