I am fan of Erlang and have been playing with him for couple of years. I tested all editors/IDEs from ErlIDE, Emacs (mode), Vim (mode) or ErlyBird. I used some of them for quite long time. But I was still unhappy with experience. Well so back to headline, from my point of view, there is no ultimate Erlang IDE right now on the market. Yes ErlIDE looks promising, but Emacs with Erlang mode still rocks .