Play also has first class support for Java. I would love to see how this Scala code translates to Java. My understanding is it should be fairly straightforward.
I've used Play1 quite a bit and would hate to lose it as a tool.
The idea behind Play2 is to have a framework written in Scala (the core) but providing a full API for both Scala and Java languages. Hence, users can choose their preferred language to write web applications.