Compatible with iOS 4 and 5
SBSettings toggle to enable/disable multitasking-gesture which just do the same as the switch in settings-general.
Will not work if you disabled the gesture function when jailbreak your idevice.
It supports ip, it, ipad which firmware is 4.3 to 4.35 and for ios 5.0 and 5.0.1,it only supports ipad.
Enable this new toggle from SBSettings' More option