The introduction of iOS 6 about UI changes and some new APIs.
With the screen shots, you can understand what's the difference between the iOS 5 and iOS6 at one glance.
friendly UI Other apps can access and share lists Forget Google map, it’s iOS map now Create audio for interactive web app New feature about reminder and no disturb Focus, exposure and region, also face detection API
and share to-do lists in the Reminders app. With the Event Kit framework, your app can create and modify reminders, assign properties like due dates and priorities, and even set location and time-based alarms.”