In reply to Trevor Nelmes.

Trevor, thanks for your opinion ... and even more for your specificity. I hope you'll be OK with me being specific too.

I agree that developers will benefit from REST. No question; faster easier development is in the cards. My concern is that WordPress itself will lose relevancy. I know, that's an incredibly high-level view of things, but that's where I'm coming from; DEVELOPERS "knowing they are using WordPress-y tools" is far less important in the larger scheme of things than the world (you know ... PEOPLE ... who care about BRANDS) knowing it.