I was scratching my brains over something when this popped in my mind. Can we set the simulator\'s home-screen background image to an image of our choice? Case in point is Xcode
Certain versions of the simulator appear to support this, not just for the home screen but for the lock screen too (which you get to with Command ⌘+L):
Note that since this isn't exactly officially supported, it may or may not work for you depending on your version of Xcode or the simulator.