LockAssistant helps you quickly open Siri from the LockScreen

  LockAssistant is a tweak recently released in Cydia that allows iDevice owners to launch the Siri personal assistant from the LockScreen extremely quickly and easily by simply pressing a button. LockAssistant replaces the functionality of the Camera button in the LockScreen and when you press it, you will automatically open Siri instead of the Camera application. The tweak is useful for those who use Siri often and don't want to wait until the assistant opens after long pressing the Home button of our iDevices.

  LockAssistant works as soon as it is installed and is available for free in Cydia. LockAssistant works with any iDevice that has Siri installed.