I was pulled off a wait list and notified by phone, as were many others on this board. I wouldn't bother waiting for the mailman to bring you an admittance. It seems that at this point, admissions committees want to know if you plan to accept or deny an admittance ASAP. This allows them to quickly pull your name off of the list and go on to the next person. Unfortunately, your destiny is like many others on this board, constantly keeping cell phone ringers on high and keeping their phones by their sides at all times. I am in a similar position. I am still waitlisted at 2 schools and my cell phone is both a trusted and despised friend.