Funny, I recall some surprise in the community because Joe was asking some easy question about C for some glue code. It's been 5 years since I touched Erlang, only for learning, but is message passing style and the way you create functions like in prolog (or in Shen or picolisp) is unique and a great virtue. I know that tcl has secure interpreters, I wonder if there is such a think in erlang.
There is also a mailing list at https://groups.google.com/forum/?hl=en#!forum/lisp-flavoured... and an IRC chat at #erlang-lisp.
P.S. I also have a prolog running on erlang as well.