Clojerl is really cool, and you should play with it; it's actually surprising how well the semantics transfer over to the Erlang VM.

If anyone wants something that feels a bit more vanilla-erlang-ish, one should also check out Lisp Flavoured Erlang. It is almost a direct one-to-one translation of Erlang into Lisp-land (actually made by one of Erlang's co-creators), but also provides Common-Lisp-Style macros, and a much more consistent, cleaner syntax than vanilla Erlang.