Create your own multitasking environment with Aero [Cydia]
Aero, a new tweak for jailbroken devices is available in Cydia, allowing the user to configure their own multitasking environment on the iPhone. The tweak is named Aero and you can choose from a list of ready-made effects how to switch between applications in iOS 5. Aero Includes 10 different effects and two backgrounds. You can define through the Activator, how the environment will be activated. We suggest, replace the double pressing the home button to ensure a consistency and a better experience.
Some of the effects are very smart and beautiful and will surely find one that suits you. Be aware, however, that the Aero is merely a cosmetic change in the way of making the switch between applications on iOS 5 and does not change the system itself is multitasking. To Aero costs $ 1.99 and you will find the Cydia Store. Obviously, you must have a jailbroken iPhone.