Same boat with the letter writers, Saxappeal. On the one hand, we've only been complete a week, so we shouldn't really start worrying until mid-October from what I can tell. On the other hand, it's already mid-September and we've only been complete a week...
Plus, if you're anything like me, you can't focus on anything other than the reasons why you shouldn't be offered an interview. Of course, there are plenty of reasons why you should as well (I assume), it's just that they're harder to see without an invite.
(I'm not even beginning to think about acceptances at this point. Just give me a chance at the interview for goodness' sake!)