1) The document discusses trends in the usage of Apache Hadoop, including the growing adoption of Hadoop to process large amounts of data and enable new data-driven business strategies.
2) Key drivers of Hadoop adoption are the need to analyze more data to gain business insights, cost advantages of Hadoop's ability to use commodity hardware, and Hadoop's ability to handle diverse and rapidly growing unstructured data sources.
3) Emerging trends include keeping raw data for long periods to enable flexible analytics, data-driven development approaches, specialization of data systems with Hadoop handling analytics and reporting, and more organizations piloting Hadoop projects.