While Google giveth and taketh away end-user apps, its generally been good to developers — all the better to get new tools into the wild. One of those pet projects, Dart, is now out of beta and into a production ready version 1.0 SDK, according to Mountain View. In a nutshell, its a programming language that aims to simplify, speed up and (it hopes) one day replace Javascript as the app of choice for web developers.