The storage capacities are 32GB, 128GB, and 256GB.
It's nice that 16GB is finally dead, but the way they keep skipping one tier to encourage buyers to go for the next one is cheeky. Still, one thing I like about Apple is that they're at least offering the choice of the higher capacities, even if it's so expensive. 256GB is really damn nice.
Anyway, won't be too interested in an iPhone until next year when they finally get OLED displays.