There seems to be some very positive buzz around this screencast mentioned both in the OP's blog and around HN in general: https://peepcode.com/products/emberjs . I found it particularly instructive but found that it only scratched the surface of this new framework. At least, it scratched enough off the top that I feel comfortable rooting through source and API documentation to figure out the rest. YMMV, of course.
i felt it did very well as an introduction. I think a deep dive into ember-data would be great for those who have been traditionally server side devs now getting into more of the client side stuff.