I suppose shawn we can just agree to disagree because your comments about it's application specific, IMO, is completly misguided in this topic. IMO, it's not application specific but a option for any developer to use. I don't see it as something very specific, no more than jquery having an @each syntax thingy. I read your comment as 'i want to do this and i don't know how, so jQuery, can you do this for me because i don't know how/can't be bothered'. Even the next reply is doing some queuing, so i can't be THAT far removed. If it's in the Core, then it's assumed it's an important wrapper to help developers maximize the technology they are using.
After all this, though ... this is my personal opinion of how i see things against yours .. and neither of us are wrong or write .. it's personal opinion. The topic asked if this functionality was in the core - and it's not. I suppose you're 100% right in seeing if John Resig and the krew think this is an important option which could see benefit from the community... or just more debate. :)