FYI
http://alumni.brown.edu/services/advise/app-outcomes.html
From the website:
A deferral is an outcome that only takes place in the context of early application plans, and it means that the college is not prepared to either accept or deny you at this juncture, so they defer making a decision on your candidacy until they can consider you in the larger pool of regular decision applicants. Most often there isn’t a specific reason why a student is deferred, it is simply that the admission offices at selective colleges have far too many strong applicants for the number of spaces they have to offer.
Assuming you remain interested in them, it is vital that you a) keep your grades up and continue to be involved in the things you love to do, and b) follow up with a strong letter of continued interest to their admission office. Especially with Early Decision II plans now offered at many colleges, admission officers are aware that a good number of deferred students will apply ED II someplace else. So you need to let them know—in a brief but positive and heartfelt letter—that you are still interested and, if it’s the case, that they remain your first choice institution.