This is a new Jailbreak Tweak from Cydia called OS Experience that will completely change how you use your iPad.
This Tweak allows yo to True Multitask, unlike the traditional IOS Multitask.
"OS Experience is a window manager that allows multiple apps to be run at once; no longer are you confined to just one app at a time. This allows for the maximum productivity the iPad can deliver, by allowing multiple tasks to be completed at once. It is a must-have tweak for any power user."
You can get it on Cydia Store for $9,99. Check out the demonstration video.
iTwe4kz