Today at WWDC, Apple confirmed that multitasking would be coming to the iPad with iOS 9. The new feature will allow users to view, and sometimes interact with, two apps simultaneously in multiple ways. First is "Split View," coming to iPad Air 2, which brings the most powerful task managing multitasking experience to the tablet. With it a user can open two apps at the same time, and completely interact with them in the normal way with no limitations.
Conversely, older generation models and iPad mini will have "Slide Over," allowing them to slide in a smaller version of a second app from the side of the screen. Apple gives examples like quickly responding to a tweet or text message while browsing Safari as a prime example. Although, unlike Split View, Slide Over isn't true multitasking as the app relegated to the background can't be interacted with while the second app runs on the side of the screen.
iOS 9 will also bring picture-in-picture to allow users to watch video while browsing around within other apps. By simply pressing the home button when watching a video or even using FaceTime, users can browse their iPad as normal while a smaller boxed video keeps running in the corner of the screen.