Josh has just published the tool he's been working on - CRACK.NET. Its a combo of Snoop and Mole and its pretty awesome. "Crack.NET allows you to “walk” the managed heap of another .NET application, inspect all kinds of values on objects, and even manipulate those objects via IronPython scripts"
You can read more about it from here
Download (Binaries/code): http://www.codeplex.com/cracknetproject/Release/ProjectReleases.aspx?ReleaseId=18629