http://www.usopen.org/en_US/news/articles/2011-08-28/201108281314573965589.html?promo=home Looks like it will go ahead as planned. For anyone who doesn't have the sports channels there is coverage on British Eurosport which comes with the basic Sky/Virgin package. Starts at 16.00
you would think they would have a roof on at least one of the show courts, mind you the ash court is so big it would be some engineering feet to fit a roof to that.