Ryan Petrich has updated the popular jailbreak tweak Activator.
Activator lets you assign activation gestures to any application. A common example of this is swiping the status bar left or right to bring up SBSettings. It can be highly customized and best of all, it's free. Chances are if you already have some common well known jailbreak tweaks installed, Activator will already be on your device.
Next time you open up Cydia, Activator's 1.5.5 update will be waiting for you...