We often get mail saying: you should take a look at Language X; it has some really cool features.

We're ready to embrace (and extend) any great new ideas that are out there, but there are just too many languages for us to learn them all.

That's where you can help. If some other language has a core language feature that impresses you, make a post describing it on the Arc Forum, along with, if applicable, the presumably kludgier code you'd have to write in Arc to do the same thing.