Erlang becomes Open Source

Michael Lundkvist writes "Ericssons Erlang programming language and run time environment has finally become Open Source! This includes such goodies as Mnesia the distributed Database Management System. It is released under EPL which is a derivative of MPL. Slashdot has previously covered Eddie which is implemented in Erlang" Apparently, there is some sort of legal protection the company gains from doing this, but IANAL.