How exciting! I know you are standing there staring at them! Sometimes it takes a few hours and other times they zip and pop out in less than 15 minutes.
Mine are not even pipping yet but I just moved them to the hatcher today so it may take a while longer since I let them get cool a few times in the past 2 days. I am sure mine will hatch tomorrow afternoon so I have to hear them peeping all night while I try to sleep. You would think 20 feet and a wall plus a fan running in my room could knock out some of their noise but they can be loud!
Of course, I have gotten up on occasion to see what the insistent peeping was all about only to find one had gotten trapped between the carton and the wall and wasn't strong enough to get out. Once I rescue them, give them a little kiss and put them in an empty carton slot they get a bit quieter. (I have yet to catch some dreadful disease from newly hatched chicks.)