Core Data and Sync Services
Apple’s Sync Services framework allows applications and devices to keep in sync with each other’s data. If you subscribe to the MobileMe service, for example, it is Sync Services that handles synchronization between the server, your computers and any connected devices such as an iPhone. This article discusses adding synchronization capabilities to Core Data applications. We’ll start by looking at the information you must provide to allow synchronization to take place and then build two sample applications that will keep in sync with each other.