[donw]

Part of me really wants to just write a Ruby-like language that has Erlang-like concurrency features, but that's a project for later.

[troystribling]

There already is a project, Reia http://wiki.reia-lang.org/wiki/Reia_Programming_Language, which implements a Ruby like language on the Erlang VM.

[cjenkins]

Depending on what you like from Ruby, you could also check out Lisp Flavored Erlang at http://github.com/rvirding/lfe. IIRC Virding was one of the original creators of Erlang.