How easy is it to use C# on a (shudder) Oracle Solaris box?
(edit) In all honesty, skennedy makes a very good point. C# does seem to be gaining popularity. (And yes I'm aware of the Mono project.) Frankly, I just don't trust Microsoft. There have been compatibility issues with migrating between early versions of the .NET framework, and the end of Visual Basic left a bad taste in many mouths.