With Multify, you can adjust the size and placement of the apps while you multitask, so you can easily place two or three apps on the screen at the same time and interact with all of them simultaneously. For instance, can easily have a YouTube video playing while you read iClarified, or write an email while you browse the web.
You can launch Multify through different activation gestures. Once you launch the app you'll notice a plus icon which lets you add additional apps. Additionally, Multify's edit mode lets you quickly move and resize apps. In the app's settings menu, you can set your favorite apps, change activation methods, and customize the look of Multify.
Multify is available now in the Cydia Store (BigBoss Repo) for $5. It is compatible with all iOS 8 devices including iPhone, iPad, and iPod Touch.
Once you've tried it, let us know what you think!