dec 1st is the mailout date for ACCEPTANCE letters. which means that had the schools wanted to reject you, they would have rejected you by then. since you've already gone to a slewful of interviews and haven't heard back yet...chances are, it's good news. usually the schools will let you know within a few weeks post-interview if they don't want you.
calm down and chill out. because in the next few months, until december, the anticipation will only grow worse. i fondly remember checking my mailbox 3 times a day around the dates of december 7th (it also made it harder b/c i was living far away from the dental school i was waiting for--so it was extra snail mail time vs people who live near the school got their letters on dec3rd).
donkey, what the HELL is that thing in your avi? mutant cross between a ...i don't know...