TRV reports this browser feels like a complete rebuild, it still lacks some features found in other browsers but the reviewer says it's very impressive.

"Just a month after Microsoft presented a Release Candidate of the new, completely rebuilt Internet Explorer 9, the company has delivered the final version at this year's SXSW. Microsoft's new browser is faster, trimmer, more compliant with HTML5—a major improvement over its predecessor. It also brings some unique capabilities like tab-pinning and hardward acceleration, but only Windows 7 and Vista users need apply."



Link: TechReviewSource