well, most of us honestly thought webkit would be the first to pass, indeed quite surprising.
But its a very good thing for all users, IE8 defaults with standard mode, pass Acid2, opera and webkit both show great commitment to acid test, its very good from user standpoint.
Firefox probably will lands all those fixes after firefox 3, since releasing of version 3 is practically a much bigger priority.
And Im still quite glad since I believe firefox's rise in past 3 years has been the driven force of this whole revolution, and frankly, without cross-platform firefox, the users would be more tightly tied to windows as well.