> So if Java could have gotten goroutines without having to make a whole new language... would Go be a good idea?

http://blog.paralleluniverse.co/2013/05/02/quasar-pulsar/

"We’ll start at the end: Quasar and Pulsar are two new open-source libraries in Java and Clojure respectively that add Erlang-like actor-model (and Go-like coroutine/channel) programs to the JVM."