I love this. If everyone did this, then Microsoft would lose the power to do whatever it wanted. Standards compliance would not be optional for them anymore. I hope this is a trend that continues.
Nevertheless, it has been blindsided by the sudden appearance of much faster Javascript in chrome and other browsers. It's too late in the dev cycle for IE8 to get that. It will have to wait for IE9 or 8.1 or whatever.
While I agree it was awesome it's only appropriate if you don't lobby Microsoft by shafting your users.