[dos1]

>That's the point of an event-based system, it's a decoupling. De-coupling is an abstraction. It works on pages that are based on components or modules.

Right, we're on the same page. I agree that in certain scenarios these decoupled event based systems make sense. However, Twitter's example app is an email client. That to me is not a use case I would typically envision as being free of coupling. Thus it's more work to maintain in the long run.