I have an iPhone 4 running 4.01. I have five blank (white) icons on my home screen named: iPodOut, WbbSheet, TrustMe, DemoApp, AdSheet. They open to a black or white screen, then close. They can be moved to a different page, but can't be deleted. I don't know how they got there, but I'm guessing that they are Jailbreak and/or Cydia related. Any help would be appreciated.