Interesting. Sounds like I've been wait-listed at a number of places, then, seeing as I've heard nothing from programs to which others have already been invited (UCLA Logic and SUNY Potsdam in particular).
I might be something of an unconventional applicant. I've always liked math, but I was a disinterested and angsty civil engineer until a year ago... that's when I finally dropped engineering for math. Since then, my grades have been perfect, but for the first 1.5 years of my college experience...