I would love to see Erlang bindings to the Player/Stage API. If they existed, we would include them in a heartbeat on the RoboDeb robotics virtual appliance.
I don't think any Erlangistas hang out here, but you never know. If you're savvy with Erlang, and are interested in collaborating on binding Erlang to the Player/Stage API, I'll put it in an environment where you can double-click and play with robots.