This video shows some of the performance and touch improvements in the sixth IE10 Platform Preview, part of the Windows Release Preview.
Microsoft detailed the improvements in Internet Explorer 10 included in Windows 8 Release Preview. This 6th Platform Preview release of IE10 comes with improved performance. Now IE10 supports touch-first HTML5 and also a new power-optimized, touch-friendly Adobe Flash Player that enables content on compatible Web sites to play in the Metro style Web browser. Microsoft worked with Adobe to include the previous feature. Also, now Internet Explorer 10 has made the “Do Not Track” feature as a default option to help consumers protect their privacy.
Read more at IE blog.