Clone Detective for Visual Studio 2008

I've stumbled upon a little VS2008 addon that I think could prove very useful. It's called Clone Detective. Here is how you use it:

• Make sure VS2008 is closed
• Download and install the setup file
• Additionally the source is freely available!
• Open VS2008 and load a solution up
• Go to View -> Other Windows -> Clone Explorer
• Click the Run Clone Detective button

Now you should be able to see the percentage of cloned code in each file and also see the cloned code as vertical lines on the right vertical border next to the code.