In terms of scalability,how Scala compares to Erlang ? Erlang uses its own virtual machine where as Scala is JVM based. What Erlang proponents say is no matter how much memory available, one can create thousands of Erlang processes. There is no one-one mapping between Erlang process and OS-thread. Hence Erlang is considered good for server side programs.
Are there any specific areas/use cases where Scala is obvious choice over other languages ?