The Contentful team has officially released the iOS SDK, making it easy to integrate their API into iOS apps and distribute content across various platforms. The SDK provides a straightforward way to build content-driven apps using CocoaPods, Git submodules, or static frameworks. It offers features such as managing requests to the API, creating client objects with spaces and access tokens, fetching entries, and showing resources in a collection view. The SDK also includes UI components that can be customized for specific use cases. Users can build their own iOS apps using the guide app as an example, which demonstrates how to fetch data from Contentful and display it in various views.