But in http://html5test.com/results/desktop.html they are still dead last. And you sometimes need to jump through special hoops to get that level of compatibility - for instance without a custom http header you can't get compatibility mode for intranet sites. IE 10 still lacks standard competitor features such as a nicely sandboxed private mode. (Often jokingly called "porn mode".) And, as you note, competitors like Webkit are rapidly moving the bar for the future.

In no way is this "on par with". "No longer horribly unacceptable compared to" I could grant you. But not "on par with".