IE9 for windows phone 7 may be release in this year mid. Surely we can see more changes in browser (fast, HTML5, more options and better GUI)
This video, recorded at the Windows Phone stand at SXSW, we get to see a preview of some of the new features and design changes to IE9 for WP7. As we can see, the address bar has been relocated to the bottom, which is a deviation from every other smartphone browser and also the HTML5 support, which looks to provide great rendering performance.
Another video about IE9 for Windows Phone 7 support HTML5 and speed test
Really, I am looking forward for IE9 for WP7 release!
Source : http://pocketnow.com/
Enjoy while coding..!