There was an interesting collaborative working hack in there with using Dropbox for real time development with Xcode and two devs on different laptops (at least thats what I think they were doing).
Yup, you're correct. It worked well since there were only 2 of us and we were working and separate parts most of the time. Updates were always instantaneous and we always knew when someone was working on a file because we would get a notification as soon as they saved a change. Not the best setup, but it worked for us.