My iPhone 4 appears to have randomly wiped itself. I woke up this morning and it was fine. I put it down and went into the kitchen to get a cup of coffee. When I came out, the phone was displaying the logo indicating I should connect the phone to iTunes. When I did, sure enough iTunes asked me to restore from a backup, and the phone had reverted back to it's out of the box state. It's almost as if someone had initiated a remote wipe. Has this happened to anyone else? Any idea why this would happen?