It's live and you can give it a try now! Ten minutes ago Shawn and Scott released the hounds. If you'd like to step through .NET Framework Source code, here's what you need to do.
That's it. Crazy. You can get more detail on Shawn's post if you need it. Here's me, just now, stepping into XPathNavigator's GetNamespacesInScope method.
Do note a few things.
Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. I am a failed stand-up comic, a cornrower, and a book author.
Disclaimer: The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.