I just ran "ant -projecthelp" on Scala trunk (Ubuntu is stuck on 2.3 and I wanted to see the generics support in 2.6.x) and saw this:

• android.build      Convert this project's .class files into .dex files
  
• android.libraries  Builds the Scala library for Android
• android.sources    Create the source directory for Android library
  

I had no idea. Digging around the source tree shows trunk/docs/android-examples. Having Scala run on Android is very cool. Digging around online shows that Daneil Lorch picked up on this a few days ago, and there is an Android howto on scala-lang.org.

Scala: I remember reading Brian McCallister praise it years ago, taking a look for a bit, and moving on. But I've been goofing around with Scala on and off for a few months now (in part a knock on from Erlang and some long bets). Some bells have been going off recently; I have to say I'm getting sucked in.