Ok, but there are plenty of things that aren't message passing in Erlang, whereas, say, in Smalltalk, pretty much everything goes through messages, no?
Yeah, I've heard or read Joe Armstrong talking about how Erlang process are like 'objects', but his brief cryptic comment needed something more. And I still disagree with it, because there's tons of interaction in Erlang that is not message passing.
I've glanced at it, but a language that sells itself as a Ruby-like language for the Erlang VM doesn't appeal to me. I really like Erlang, but don't care for Ruby. (In the procedural/OO/scripting niche, I strongly prefer Lua.)
I'll check it out again, though. If nothing else, it's an example of a real compiler written in Erlang, which is interesting in itself.