Yesterday the IE9 Beta was released so you may want to download it and start testing. However, if you’re still on XP, you’re out of luck:

According to The Register, Ryan Gavin, senior director of IE business and marketing, confirmed that "Microsoft would not put IE9 hardware acceleration features in the current version of its browser, IE8, or back port IE9 to older PCs running Windows XP."

The full story is on Read Write Web.