Ember has always been driven by the idea that web apps are becoming more and more like native apps over time.
Well, this is what people keep telling again and again, as if it was enough to repeat it to make it real, but I still have to see one web application that I would prefer to use over a desktop one.
Sure, we have hugely complex webapps, but the browser is a really a shitty environment to think of it as a "platform" to do anything else than to read documents.