I downloaded the latest Internet Explorer 9 beta this morning and ran it against html5test.com, and it scored 96 points out of 300. Chrome gets 231 points and even Firefox 3.6 gets 139 (4.0 beta gets 215).
I'm more than a little disappointed. It looks like Internet Explorer is going to continue the tradition of obsolescence and suckage.
Chrome has been my default browser for a long time, and I'm glad that it is! The new IE9 is fast, but that is probably because it doesn't do anything yet.
Here is hoping that the IE9 team brings in more adoption before IE9 releases.