The track in Osaka is clearly VERY fast. Tyson Gay and Asafa Powell ran great 100m times (at least for quarterfinal races) while shutting things down at 85m and 60m respectively. Both Gay and 400m superman, Jeremy Wariner have already gushed over the new surface used in Japan. It’s a double-layered softand hard rubber track that enhances traction. This means that unlike the fast track in Atlanta’s Olympic stadium, this one is actually distance-runner friendly while still being unbelievably fast. What kind of difference does it make? I don’t know. I guess only times will tell (pun fully intended).