Here is an msdn blog post on the issue: http://blogs.msdn.com/ie/archive/2007/12/19/internet-explorer-8-and-acid2-a-milestone.aspxNo way! Even Firefox does not pass the Acid2 test.
Though just as Microsoft achieve that: http://it.slashdot.org/article.pl?sid=08/03/05/1945202&from=rss