I spent a good chunk of time yesterday familiarizing myself with the NSUserDefaults of Objective-C and OS X. NSUserDefaults are known to all of you as preferences. I first wrote them into my tutorial Currency Converter example, and then started to transfer the knowledge I gained from doing that to my own application. I haven’t completed that task, but I’m well on the path to in having most of the code written and a full understanding of what I need to do. I also completed the main interface with the exception of final touches/ windows and the connecting of the interface to the code. In all I think I did about 3 hours of work. Enjoy, Alex.