My guess about the names Steve and Kwon is the idea of giving one child an American name (for Zach) and the other child an Asian name (for Lane).
Other than that, maybe there is really nothing much to the names themselves. Some of the stuff on GG is oddlball for the sake of oddball.
I'm not thrilled that Lane got preggers. I would have preferred seeing her live out her dream of being a rock drummer, at least for a little longer. Poor gal, has sex once and she's knocked up.