SpringBoard #

 full_path = "/System/Library/CoreServices/SpringBoard.app/SpringBoard"
 runs_as = "mobile"

Windows manager on iOS, manages a big part of the user interface, vital process that will be respawned if the process crashes.
It is of interest to jailbreakers and spyware makers, in the latter case, altering its behaviour will make the user oblivious of compromises. (One example is that it reports sensors usage like microphone or camera)