VB.NET, C#, what else?

While talking about .NET, VB.NET and C# will come to our mind at first. Of course, there are still others .NET languages available such as J#.NET, Delphi.NET and etc.
Boo, a new object oriented statically typed programming language for the Common Language Infrastructure with a python inspired syntax and a special focus on language and compiler extensibility. [This definition is taken from Boo web site.]

[Original posted by Don Box]