This document discusses smart phone apps for agriculture. It begins by listing the major operating systems - iOS, Android, Windows, and Blackberry. When choosing a system, iOS is easy to use but limited to Apple devices, Android has a wide variety of devices and prices, Windows is new to apps, and Blackberry is trying to make a comeback. It discusses specifications like screen size, memory, connectivity and battery life. Accessories like cases and screen protectors are also covered. The document demonstrates basic app uses and how the cloud can be used to access files across devices. It concludes by asking for questions and sharing.