I think it's useful for rapid prototyping; the developer doesn't need to explicitly define change firing if the change sets are small and easy to handle on a ke

I think it's useful for rapid prototyping; the developer doesn't need to explicitly define change firing if the change sets are small and easy to handle on a key-by-key basis. It would be nice if the framework allowed for both paradigms in a clean way. A developer should be able to quickly and safely insert indirection into the change event firing process later in development as an optimization. If Angular provides this facility, sign me up :)