Ouch! I was dreading this from the day AngularDart was announced. I don't want AngularJS to be a second-class citizen within the Angular world -- my startup now

Ouch! I was dreading this from the day AngularDart was announced. I don't want AngularJS to be a second-class citizen within the Angular world -- my startup now depends on it! Btw, what's the benefit of Dart? I never really understood (or bothered to find out, for that matter).