Internet Explorer 9 Test Drive

Microsoft Launches First IE9 Developer Preview with Support for Hardware-Accelerated HTML5. It is available for download from www.IETestDrive.com.

Direct Download Link:    http://download.microsoft.com/download/7/F/D/7FD512A8-026C-4388-B598-D763185249CF/iepreview.msi

Size:    14.2MB

System Requirements:
Windows 7 (x86 or x64) or Windows Vista SP2 (x86 or x64).

FAQs:

http://ie.microsoft.com/testdrive/info/FrequentlyAskedQuestions/Default.html