Agreed.

Write a game once in JS/WebGL. People can play it through the browser on the desktop, or download an app on Android/iOS/BB10/whatever that is the same code compiled with JXCore/LLVM for native performance and/or offline play.

Best of both world really. Especially with things out there like CoffeeScript, LLJS, and Typescript, which make using JS as your dev language manageable even for us traditional OO-heavy game devs.

Let's see how limited will we be with it. Like, will it allow us to change variable types dynamically? And what JS libraries will run on it "out-of-the-box".