There should be a permalink to the latest version of a file in the source control. I.e. http://codeplex.codeplex.com/sourcecontrol/directoryA/directoryB/file.cs
would be a link to the latest revision of file.cs in DirectoryB.
This is perfect for applications that need to download information without the hassle of updating that file on a seperate website when you could just update it through source control.