I have advertised a few times on this site for my iPhone/Android application, Right2bear. I've decided to sell the source code due to my inability to keep up with all the laws that seem to be changing on a daily basis. You can leverage the current source code and use it as a great starting point for the development of any other reference application on the iPhone or Android platform.
Take a look at my site for additional information: www.right2bear.co
Message me if you have any questions regarding the source code.