I totally forgot!  Code to Live posted the interview I did with Rob Howard about Microsoft releasing the Source Code for much of the .NET framework - here's the snippet from the Code to Live web site:

In this show, Rob Howard and Richard Hale Shaw discuss their opinions on opening up the .NET Source code and how that was done.
Watch the screencast(WMV)

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Code to Live: Rob Howard and Richard Hale Shaw on Opening the .NET Source Code