Microsoft's Vision for Internet Explorer 9
Microsoft is taking these steps to ensure that Internet Explorer is able to take advantage of the next generation of the web, using new standards such as HTML 5 for marking up pages, and a new version of Cascading Style Sheets (CSS3) for formatting the page's data.
General Manager of the Internet Explorer team, Dean Hachamovitch, stated that the HTML spec struck him with the opportunities that HTML 5 could provide developers and end users, announcing that "Reading the HTML 5 specification, what struck me is the opportunity HTML 5 applications will have to do things. We had the opportunity to think how will this go, how will it stress these systems, how is it going to stress the internet. This stuff is really going to need the hardware in ways HTML applications and Ajax applications don't."