I presume you are talking about ScriptX created by an Apple spin-off Kaleida Labs? I'm reading about it right now, and I don't see any specific features useful

I presume you are talking about ScriptX created by an Apple spin-off Kaleida Labs? I'm reading about it right now, and I don't see any specific features useful for language-oriented programming, not even Lisp-like macros. From what I can see it doesn't seem to encourage this approach to software development at all, it looks like some kind of Smalltalk derivative with multiple inheritance bolted on.