I'm usually reluctant to try new programming languages but I'm excited about Dart.
I've never written a line of code in Scala, Clojure, Groovy or Fantom. They're all trying to get me to switch from Java. But Java is comfortable. I'm productive despite its verbose syntax and extravagant class library.
Dart picked a different fight: get me to switch from JavaScript. JavaScript has always been more foe than ally. The syntax, DOM, and browser incompatibilities have conspired to make me dislike it. Some of this is my fault: if I spent more time using it, I'd forgive its faults as I have Java.
But Dart. It's familiar, efficient and productive. Sign me up.