There are a few github forks that have added a couple useful things. For my use case (converting case classes to/from JSON in scala 2.9.2) it works perfectly.

I've also written a Jackson plugin that knows how to marshal POSO classes - it's just an introspector that uses the scala convention instead of the JavaBeans convention. By and large it works well - perhaps I should put it up on github.

Not really alive at least and not compiled for Scala 2.10