Well I have discovered a huge flaw in the Passcode unlock feature. 1) make sure you have your phone set to require a Passcode (for the sake of this test, set it to require a Passcode immediately). 2) ensure a Passcode is required to unlock the phone by sliding the slider and being prompted to enter a code. Once prompted, cancel. 3) Now double click your home button to have the camera shortcut shown. 4) select the shortcut, take a picture, then click the icon in the bottom left corner to go to your camera roll. 5) once you are viewing your camera roll, click your home button. After all of this, where do you end up? I end up at my home screen without having entered my Passcode. Nothing is restricted and I can access everything on my phone. Definitely a major flaw and defeats the purpose of having a Passcode. Hope apple fixes this soon.