Well, I know that Dartmouth has at least sent a few invitations out...our interview dinners start either this week or next. I know this cause I am a resident here & planning to attend some of those dinners. I am already slated to dine with the applicants on 23 November. So, if you're scheduled to interview at Dartmouth on Monday the 24th, you will have the pleasure of meeting & eating with OldManDave. The cool thing about the group scheduled that night - the other parties are precisely the crew that attended my own interview dinner almost a year ago...only addition, this time I am sitting on the other side of the dinner table.
If you are worried about the status of your application, I would call. Lisa Wirth is very friendly as is the remainder of the Anesth Dept Admin staff. I would not pester them, but a polite inquiry would likely be interpeted as genuine enthusiasm for the program.