The problem for me is that the stadium is pretty breezy with wind swirling within it. This could severely hamper times in the 400m and distance events. It could either help or hinder the short sprints and will mean the difference between winning and losing for right vs left handed discus throwers depending on it's direction during that event.
After such fabulous performances in Beijing, this could really suppress performances and lead to a 'flat' olympics if races are won in slow times. I'm surprised this has not been picked up by a newspaper yet... or maybe they are saving it for next week?