[mattmanser]

I suspect in a couple of years time no-one will be using ember.js as it presently is.

They use methods to access properties and hide the actual properties away in an internal array.

This is because ECMA 3 doesn't have get/setters for property changed notifications. It's one of those things you can't shim. ECMA 5 does support get/setters, so once you don't have to support IE8, using it as it presently is will be silly.

It's a ticking time bomb. If you're using ember.js you can't write normal javascript, which is why I think it won't get any serious penetration. Or I hope it doesn't anyway as I've used libraries that do this before and it gets old fast.