I’m sure many of you are aware of the new Passbook app that came with iOS6. It is a very convenient and centralized way to keep all of your cards and passes in one spot. Passes can be updated by the vendor in case anything changes (ie. gate number, point balance). Passes can also be associated with your existing app.
The design of the user interaction in Passbook is simple and refined. Apple hid all the implementation details so that the average user isn’t exposed to the complexity, even my grandma can use it (if she ever saw an iPhone). With that said, there are still a couple of gotchas for iOS developers. We’re sharing our solution (and source code) to help you get a quick start.