IconsLock is a tweak released last night in Cydia, and through it we can close/reset/respring our iDevice directly from the LockScreen. The tweak implements in the LockScreen of our iDevices 4 new buttons right next to the clock implemented by Apple in the upper part of the screen, and the action of any of them fulfills a function. Normally in iOS you don't have such buttons available in any menu, but tweaks like SBSettings implement similar options.
With IconsLock, you will be able to respring/Turn Off/Reboot/Safe Mode with the four buttons than IconsLock will install on your Lockscreen.
IconsLock is available in Cydia's BigBoss repo and works on iOS 5.x.
