Mono in SL

I understand LL are - or were - replacing the LSL engine with Mono - is this done, or still a work in progress?

If it's done, are there any plans to support writing scripts directly in C# or other CLR languages? I realise this would require quite a lot of work on top of what may already be done, such as static code validation and resource limiting.

Are there any plans to expand LSL with language features (arrays, associative arrays, that sort of thing) that are presumably now easier to implement because you're compiling to a full-featured VM like the CLR?

Mono is not yet finished, I'm afraid.

For the more technical questions you pose, I suggest posting to the Technical Issues forums where they can be addressed by the more technical Lindens

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Cory also addressed this in his Town Hall last week:
http://blog.secondlife.com/2007/01/09/cory-lindens-town-hall-transcript/

Best,

Chadrick