I'm not really sure there is a use to put much stock in the Acid3 Test at this point, as no Browser out there can pass it currently, it seems.. highest was ff 3 Beta 4 with a 67/100... its nice to try for standards compliance and have a test for it, but until it is proved possible with a browser that is able to get 100/100 whats the point?
right now until a browser can claim 100/100 maybe it's best just sticking to Acid2