They actually sent out the same (or a very similar) message last year...I received this exactly 30 days after being complete there:
It has been quite some time since we sent you a notice indicating that your application was complete and had been referred to our Committee on Admissions for review. While our Committee is accustomed to reviewing a very large volume of applications, this year we have seen an unprecedented number of applications that have completed early in the cycle. It appears that we will be able to interview only about 10% of our applicants this year, so these reviews are quite challenging. As a result, we are running several weeks behind.
I regret the fact that we have not been able to take action on your application as yet, but I want to assure you that we are moving as quickly as we can and that there will be no penalty for the delay in our processing. Applicants who are selected for interview are invited in chronological order by date of application completion, not by date of review. If our Committee on Admissions concludes that we can invite you for an interview and campus visit, we will get it done!
Please accept our apology for any inconvenience caused by our extended review of your file. We expect to complete our evaluation quite soon, and wish you success with all your applications.
Sincerely,
Robert A. Witzburg, M.D.
Associate Dean and Director of Admissions