Has anyone had success developing a substantial Android app in Scala? Is it a viable option yet? Are there any mature development environments? Given the state of the Scala Eclipse plug-in, it looks as if there is no good IDE support at all other than possibly IntelliJ Ultimate.
A few people have posted tutorials describing how to fudge Eclipse ADT to sort-of support Scala, and how to slim the Scala libraries using Proguard, but beyond that there has been worryingly little discussion about this topic.
Update 2011-08-01: An interesting article on Android+Scala from the developers behind the Bump app:http://devblog.bu.mp/how-we-use-scala-in-bump-for-android
