Available in Cydia right now is a new jailbreak tweak called Stratos
by the Cortex Dev Team in collaboration with Ethan Arbuckle. It looks to be a very promising new App Switcher replacement for iOS 7 and iOS 8 devices, and best of all, it brings with it much of the style of the old version of Auxo for iOS 6
because of the miniature application preview cards with application icon overlays.
Stratos integrates with Control Center, so by pulling up from the bottom