Michael Weber has posted his Nikon D3 review. According to him the D3 has a slight DR advantage over the Canon 1DIII and the new autofocus is very accurate. Some quotes:

“Image quality especially at high ISOs above 1600 will set new standards”

“Literally shocked were some of them (his Canon collegues) when they had a look at my sequences take with the innovative scene recognition system at 9 fps. No matter where the player’s movements were constant or jerky, whether the background was disturbing or very contrasty, or players in the front passed through the scene, the newly designed AF tracking was mostly spot on and very, very accurate.”