Microsoft is going to release the source code for the .NET Framework 3.5 libraries
This is simply amazing. Entire NET Framework Libraries source code including comments. Priceless. Forget Reflector, now we'll be able to step in the source while debugging and see how it works. Fantastic and bold move from Microsoft, even hard to believe that this is really going to happen! Check out the details here.
But hey, what took them so long?