For the cheap C# developers there's #Develop:
http://www.icsharpcode.net/OpenSource/SD/
Which is being ported to Mono (Linux implementation of .NET) by Ximian's Todd Berman.
Here is his blog where you can follow the development - hacking has been ongoing for about 10 days now he kindly told me on IRC.
http://codeblogs.ximian.com/blogs/tberman/
Ain't it just beautiful?