Every day the flavors in the store are different depending on what special orders they had, but they have over 50 total different options. When we got there, the girls got to choose which flavor they wanted: Lemon Poppyseed, Lemon, Vanilla, and Key Lime. They have mini and regular sized available, and of course, we each got a bigger one, although Harvey wanted his own mini Lemon flavored one.
You should SO check out So Cupcakes! (And I would personally recommend the Key Lime. It was delicious.)