Ok, I have spent some time playing with Play2 and come up with a thing that mostly works.
The single most noticeable thing about this port is that changing the template file in whatever way will take effect instantly. It comes with its own class loader and does not participate the sbt process. I think the isolation is very good. Most Japid-1 syntax and features are supported.
As I said before, I don't have much time working on this. So new feature requests may take a while to get taken care of. Bug reports are welcome.
Bing