I was looking through my iPhone today and at the bottom of my "About" section under settings it has a tab labeled "ttou", I can click on it and it brings up another screen. I compared my phone to a couple other iPhones and mine was the only one to have it. All of the iPhones are iPhone 3Gs running 3.1.2 and none have ever been jailbroken or unlocked. I'm not experiencing any weird issues, but I was wondering if anyone knew what this was. Here's pictures: Thanks.