I attended the Facebook Hackathon last Saturday with Zenan and Qiyue. It was an awesome experience. People there are really geeky and some teams are technically very strong. Unlike other hackathons I attended which are somewhat business oriented, this hackathon consists of only developers. No business models need to get examined. I guess that's the reason why it was so geeky and fun. The problem we want to solve is to help couples living long distances to better communicate with each other. It is painful for them to stick with each other while they cannot meet face to face very often. There are basically two needs:1. to have a unique private messaging channel where only two of them are in each other's contact. 2.to have a pair diary space that keeps track of their memorable conversations from the instant messaging channel. Zenan is really awesome in UX design and implementation. Qiyue is also very good. We managed to build the pair diary app with Pods, JSMessageViewController ...