I believe they had to cut out some 9600 Pro tests, considering 9600s arent what everyone is wondering about, due to serious time constraints. I believe they only had 20-30 minutes to do all the tests, and Firingsquad mentioned that they had to team up with testers representing various websites...
Tom's Hardware is going with the most likely statement, and considering its estimated for November on most retail sites that could be what theyre following.