I made a QONQR API app thing. First time using iOS map and HTTP APIs.
Here was a few gotcha's I ran into, in reverse order.
Setting the map pins is done with MKAnnotation protocol. A protocol is like, a set of methods that an object has to abide by in order to pose as some certain thing or another, I think. To get the map pins to show up I had to make a Map Pin class as described here.