Visual Studio 2010 is officially released. Regardless of its quality, I think that a very large percentage of companies will move from 2008 to 2010 very, very slowly. If you are a software developer “doing” C# in some of this companies, You might find this post useful.
Furthermore, there are more and more nice and useful C# samples to be found, which are in the same time presented using C#4 and VS2010. Most of that “new” code can be re-factored “back” into legacy C#. Currently, I am reluctant to invest in VS2010, so this is my solution for re-factoring C#4 methods using default arguments, back into “legacy” C#.