Hot on the heels from IE7, IE8 will be (probably) be available in 2008 – it will pass the Acid Test 2.
The improvements of IE7 and IE8
I’m of the opinion, that IE7 does not get (anywhere near) enough credit from CSS developers. It is a huge leap forward from IE6 and I rarely have any rendering issues with it and now it seems the next iteration of Internet Explorer will be as much of an improvement on its predecessor as IE7 was to IE6.
See the article on the IE blog Internet Explorer 8 and Acid2: A Milestone, for more details.