I came across Finagle a few weeks ago, it’s:
… a protocol-agnostic, asynchronous RPC system for the JVM that makes it easy to build robust clients and servers in Java, Scala, or any JVM-hosted language.
And they’ve now written a blog post announcing it to the world. I had a skim over it before but it looks like they’ve added to the documentation since then.
I’ve been looking for a framework for writing servers in Scala, the Play framework is on my radar for web applications, and this looks like a great contender.