According to Sinofsky, there is still a lot of internal discussion about how much of HTML5 to support in IE9. HTML5 is still in its draft stage. Sinofsky did not say when the company plans to release IE9.
Hardware Acceleration and Font Smoothing
Microsoft also plans to make use of DirectX-based hardware accelerated graphics and text in IE9. In his demo, Sinofsky showed that Bing maps can render about 14 frames per second in IE8. With hardware acceleration in IE9 turned on, he got 60 frames per second. In addition, this technology will also increase font quality and readability in IE9.
Microsoft already published a number of videos with the engineers working on IE9 on Channel 9 (sorry, these are Silverlight only).