Like Android, but not Java/XML. Any alternatives?

Android L with the Material design language looks very attractive. But I really dislike the Java/XML combo for development.

So, anyone tried the alt-Java's for coding Android apps: Kotlin, Xtend, Scala etc.

Or even Xamarin or QT/QML.

P.S With ART, I hoped Google were moving away from Java and would bless one of the alt-Java syntaxes and eventually cut-out Java and evolve ART independently. But apparently not.