The document discusses trends in mobile devices and operating systems. It notes that Apple has sold over 54 million iPhones and 11 million iPads, while there are over 80 Android handset models and 30 Android tablet models. Microsoft has spent $1 billion marketing Windows Phone 7. The document reviews market share data and provides examples of various mobile devices like the Samsung Galaxy Tab and BlackBerry Playbook. It discusses developing for platforms like iOS, Android, BlackBerry and Windows Phone 7. The document outlines how mobility is changing enterprises and industries like healthcare, financial services and retail through mobile apps. It closes with a discussion of challenges in developing successful enterprise mobile solutions.