It’s guaranteed to have some bugs in it, but Microsoft has released an Internet Explorer 9 Preview for developers. Grab it if you want to try it out against your website, or just to check it out. Just remember that there will be a lot missing and not working correctly.
Finally, we announced the availability of the first IE Platform Preview for developers, and our commitment to update it approximately every eight weeks. We want the developer community to have an earlier hands-on experience with the progress we