Visual Studio Magazine has a preview of the Structures updates in Visual Basic 14:
"While everyone using the .NET Framework creates Classes, not many developers create Structures. For those of you who are creating Structures, Visual Basic 14 has some good news for you: You can now give your structure a constructor that doesn't accept parameters (a default constructor). Formerly any constructor you added to a Structure had to accept at least one parameter."
Read more at VisualStudio Magazine's .NET Tips and Tricks Blog.