The text provides a comprehensive guide on how to create a cross-platform mobile application using Ionic 2 and Couchbase Mobile, aimed at both Android and iOS devices. The author revisits a previous project that utilized Ionic Framework 1.0 and AngularJS 1.0, updating it with Angular 2 and Ionic 2 to explore Couchbase Mobile's capabilities in a modern context. The guide outlines the necessary installations, including Node.js, Ionic Framework, Android SDK, Xcode, and Couchbase Sync Gateway, and explains how to start a new Ionic 2 project with a simple to-do list application that syncs across devices. The document details the implementation of a Couchbase service using an Angular 2 provider, ensuring database access is managed efficiently throughout the application. The guide also demonstrates how to enable synchronization with Couchbase Sync Gateway by adding a single line of code, emphasizing the ease of achieving real-time data sync across devices. Additionally, the author offers a GitHub link to a sample project for those interested in further exploration, while addressing potential issues such as plugin compatibility and troubleshooting tips from user comments.