Hello, Please answer my questions honestly. If you don't know what you are talking about, please do not answer. I have an original EDGE 8GB iPhone. It is on the AT&T network and has never been jailbroken or unlocked. It is running the official 2.0 firmware and has approximately 30 app store apps on it. Most of them were free but a few of them were paid. Recently (as in today), two of my apps were updated. After updating them, I realized my data for them was gone. This isn't normal and hasn't happened before. Because of this, I have decided to look into the possibility of jailbreaking my iPhone so that I can access the directory structure and backup/restore any files that are missing after an application update without having to restore completely from backup. So, that leads me up to my questions: 1) Can I jailbreak my iPhone without changing the boot loader, unlocking, etc...? Just jailbreak? 2) I understand that after pwning an iPhone, it shows a pineapple logo when starting up. I also know you can change this logo when pwning it. Is it possible to just keep the apple logo instead? 3) If I ever decided to return to the official firmware, could I restore my iphone through iTunes to an official firmware? I understand, of course, this would remove all of my jailbroken capabilities and any apps I install that are jailbroken. 4) In regards to #3 above, if I restored to an official firmware later down the line, would my iPhone appear as though it was never modified? (since I didn't unlock or change the boot loader). I mean, can I accomplish this jailbreak without modifying the IMEI (sp?) or boot loader version? 5) I plan to start placing apps on the app store in a few months. Is it possible to develop apps, test them on a jailbroken iphone, and distribute them to the app store? (since i'm jailbroken) 6) Is the app store and its apps compatible with jailbroken firmware? I have always thought of jailbreaking but now i actually have a reason to do so. However, I will NOT do it unless I can fully revert my iPhone to an official state. If I ever decide that the official firmware has what I need or if I decide I need support from Apple, i'd like their people to not know I ever jailbroke the phone.