I have heard that the majority of appointments (>~800) have already been given out. This does not mean that if you haven't heard then you are not going to receive an appointment, as some MOC's slates have not been selected because of heavy competition on the slates, as well as many other reasons. USAFA Admissions has said that the candidate will hear of his or her status by early April, so I guess that most everyone will have heard by this week or next. Good luck!!