New day, new tweak in Cydia: SwitcherMod. SwitcherMod is a new tweak developed by Ryan Petrich, and it allows you to reorder icons in the native multitasking switcher by dragging them, change the close buttons to a black ‘x’ instead of a red ‘-‘ and make exited apps transparent.
You can find SwitcherMod for free in Cydia via Ryan Petrich repo: http://rpetri.ch/repo