I think you should differentiate between Erlang and BEAM. I've not used both except for toying, but while the BEAM looks really really cool, Erlang does not. I

I think you should differentiate between Erlang and BEAM. I've not used both except for toying, but while the BEAM looks really really cool, Erlang does not. I use Scala and I'm pretty darn sure that it is way above Erlang in almost any regard, especially for concurrency and parallelism. However, to get what BEAM offers on the JVM you have to go with Akka (which I used a lot) and I think Akka falls short of BEAM in some regards, especially debugging.