Apple releases iOS 4.0.2 update, kills the jailbreak hole
Apple released the software update to patch the PDF exploit that JailbreakMe uses to jailbreak your iPhones. So if you enjoy your jail-broken device, just like we do then avoid this update. If you rely on the unlock, then it is a definite no-no. Although, we bet the Dev team may release another jailbreak sooner than we think.