The session at Couchbase LIVE New York introduced developers to integrating Couchbase Lite into iOS and Android projects, using the Grocery Sync sample app as a reference. Key concepts discussed included the Manager class for database creation, handling documents as JSON objects with unique IDs, and the use of 'type' properties for indexing. Attachments were highlighted as a method for optimizing replication, allowing documents to attach binary data independently. The session also covered Views and MapReduce functions for creating indices and Queries for retrieving and organizing data, with LiveQuery providing real-time database updates. Practical examples demonstrated how to set up and use Couchbase Lite features in both iOS and Android, focusing on tasks such as querying data, updating UI components, and responding to user interactions. Future sessions promise deeper dives into Couchbase Sync Gateway and peer-to-peer capabilities to enhance mobile app functionality.