I've been working on a WPF project in Visual Studio 2010 and I came across a problem where Visual Studio would crash when I used the Document Outline while editing an XAML in the Design view. There seems to be several ways of solving this but all the methods seem to involve code either as a separate class such as a ViewModelLocator or in a code-behind using GetIsInDesignMode. Here is a solution that uses (mostly) XAML. First, create a new ViewModel class that is a stub or mock. This class will also allow you to have some design-time data that won't crash Visual Studio. Then implement the following XAML to select between your main ViewModel and your mock ViewModel. The Blend XML Namespace ("d") is marked as Ignorable (only available during design-time) then AlternateContent is used to select the MockViewModel if the "d" namespace is available (design-time) and fallback to the MainViewModel (run-time).
I've finally had some free time to work on the Label Sphere. The new version should correctly color the labels according to your blog's color scheme on Chrome, Firefox, and IE 8. The new version has not been added to the Blogger gallery yet, but when it does get added I will post an update. To use the new version, add a new gadget to your blog, select "Add your own" and use the following URL
Recently, I've been working with Windows Workflow Foundation 4 a lot. I wanted to use a FreeformActivityDesigner for something but the System.Workflow.* assemblies were not listed in the Add Reference dialog. The problem was that my Solution was targeting the .NET Framework 4 Client Profile Platform Update 1 which doesn't contain those assemblies. To fix this problem just change the target to .NET Framework 4 Platform Update 1.
Edit: It looks like the FreeformActivityDesigner is not really usable in WWF 4 and that the alternative is WorkflowItemPresenter. (forum post)