Miyako publishes a plugin to connect 4D to the Apple Address Book. The plugin is free and open source, you can download it from here. It works reliable and offers all features you may need to synchronize your 4D app with the OS X contacts database. The only thing that is missing, is a detailed documentation and sample database… until now. We have created a little 4D app demonstrating the power of Miyakos plugin. The app is free and open source, you can download it from here (4D v16.4 required).