As hard as it is to do, y'all should just chill out.
If you've interviewed, the ball is in their court. You need to be patient, let the committee make their decisions, and wait to get your letter/phone call/whatever. There is nothing that you can do at this point.
People in the admissions office understandably get upset when applicants feel they need to call all the time. Admissions personnel are not at liberty to discuss much, and frankly, you have nothing to gain by calling.
Having been in your shoes, I know how tough it is to be patient. Just hang in there, cross your fingers, and remember that you're one of several thousand applicants who all need to be given consideration.
Good luck,
doepug
MS III, Johns Hopkins