If the Common Language Runtime doesn't support multiple inheritance, how is Eiffel.NET supposed to support it? I don't believe it can. Presumably Eiffel.NET will be different in some ways from the current version, just as VB.NET differs from VB 6, in order to support .NET's requirements.

Your main point that within .NET the choice of language will be mainly a lifestyle choice is on point. There is essentially no difference in capability or execution speed between one .NET language and another.

Mike