I have a feeling that Dart is just D (or at least they are comparable syntax and feature wise). So is the question: why Dart? Or is its goal to be a Java-on-A

I have a feeling that Dart is just D (or at least they are comparable syntax and feature wise). So is the question: why Dart? Or is its goal to be a Java-on-Android killer? So always to have some [inspectable] bytecodes as a delivery media and JIT those on a device? But JavaVM is already there for that purpose so is that sacramental question again...