Today Microsoft promised Internet Explorer 8 will use the 'super standard mode'  rendering mode by standard instead of the IE7 version 'Quirks mode' that was planned earier.

Because of this People will be forced using the W3C standards OR add a special tag so the browser knows it should render the page in IE7 mode. Hopefully this will help to have 1 standard html which every browser will show the same way. More information about this: http://blogs.msdn.com/ie/archive/2008/03/03/microsoft-s-interoperability-principles-and-ie8.aspx 

With this change IE8 will be able to pass the ACID2 test but guess what the "Web Standards Project" released the ACID3 test today which is supposed to test Ajax and other dynamic content in browsers. IE7 get's a score of 5 out of 100 while FireFox is getting the current best score with 50/100. Still a long way to go for every browser to pass this test. You can find the test and more information here: http://www.webstandards.org/action/acid3/

Geert van der Cruijsen