October's release of iOS 5 featured changes in nearly every part of Apple's mobile operating system, along with adding completely new capabilities to the iPhone, iPod touch, and iPad. Because of iOS 5, our devices now sport a Notification Center, iMessage, Twitter integration, Reminders, Newsstand, and much more. The new OS introduced iPad users to a host of new Multitasking gestures, tabbed Safari browsing, and a split keyboard for easier typing. iOS favorites such as Mail, Maps, and Calendar got a number of improvements. Overall, iOS 5 made it possible for us to do more with our mobile Apple devices.