This document summarizes an Android application development workshop covering building a "Hello World" app over the course of two days. Day 1 focuses on setting up the development environment, creating a new project with activities and views, and using intents to connect activities. Specific topics covered include the Android system architecture, installing the SDK and IDE, building the first app in an emulator, project structure, layouts, and the intent system for inter-activity communication. Day 2 will cover resources and layouts in more depth.