Thanks all for your wisdom! I'm hopeful based on what Ian faircloud's point is and am rather surprised I didn't get cut immediately. Needless to say, I'll be compulsively checking it for the rest of the week. Dgswain, best of luck to you in the rest of your apps. I wouldn't be surprised if my own rejection came in later today!
EDIT: Regarding your point about unknown undergrads, Ian Faircloud, my undergrad was very much unknown so I'm expecting a cut.