Thanks Greg - very true. Since the goal of this project was just to get something out the door I didn't really think of or plan for maintenance. Now I know for next time! I don't have any ambitions or monetary goals for it which is why I did it super cheapo.
I was able to dig into the project in xCode and make a small update, package it up and re-submit which was a really fulfilling experience to be able to figure it out!
I used this site a few times in college - http://www.notehall.com/ . The downside is you have to pay for notes, study guides etc. but they let you preview the notes and then leave reviews after you've purchased.