The most frequent criticism I've seen about the Acid2 test is the inclusion of SGML comments. Thankfully, the test author has taken the criticism to heart and removed the SGML comment requirement from the Acid2 test in favor of the Web Apps 1.0 comment spec.. If you take a look at the test source now, the old SGML comment test has been changed to:
<div class="parser"><!-- ->ERROR<!- --></div></div> <!-- two dashes is what delimits a comment, so the text "->ERROR<!-" earlier on this line is actually part of a comment -->
We were wary of fixing our SGML comment parsing problems in the first place, so this is a positive change in the test. It looks like we have just one more bug to fix before we pass the Acid2 test, though there's still one more update to do about changes already visible in Opera 9.0 Preview 1, so stay tuned for further updates.
