IE8 passed the Acid2 test.
As a team, we’ve spent the last year heads down working hard on IE8. Last week, we achieved an important milestone that should interest web developers. IE8 now renders the “Acid2 Face” correctly in IE8 standards mode.—Internet Explorer 8 and Acid2: A Milestone
For those who don’t work in web dev and CSS in particular; this means that if Microsoft keeps it up they will stop sucking browser wise. Never thought I’d see the day.