I have a jailbroken 3GS running on iOS4 point whatever and my screen is discolored. Colors are dim and I have pink lines running across my screen. I haven't done anything to damage it, I protect my phone with my life. This comes at an especially bad time because not two weeks ago did I pay $80 to have my entire front assembly replaced when my LCD burned out. And I lost $50 worth of drugs last night to a harlot, but that's a different story.