Hello, I just felt I should clear something up. It seems to me that most people are scared of jailbreaking because it voids apple's warranty. This is totally untrue. If you Restore your device to factory settings via iTunes, there is no way Apple can tell if you have a jailbroken device. That being said, Ive read in a number of places that apple geniuses can use ther diagnostic utility to tell if your device has ever been jailbroken. I can say, from personal experience, that this is FALSE. I have returned both my iphone 3G, formerly Jailbroken and restored, AND my dad's iPod Touch 1G, also formerly Jailbroken and restored. Both times the Genius said that he will take the device to run a diagnostic on it. He came back and replaced the device on both occasions no questions asked. The Diagnostic utility, simply due to software limitations, CANNOT read information that has been deleted prior. Such technology costs lots of money to use, and I beleive it only works on magnetic disk Hard Drives. Note on restoring: When you restore you MUST restore via iTunes, Shift+Click the Restore Button, and select an .IPSW firmware on your PC. Using this method will format the device. Restoring by just clicking Restore or via iPod (Reset all settings) may leave some files behind! Also, after restore, you should click set up as a new iPod, or not click anything at all. If you choose restore from backup, the iPod will be synced to a previous backup of your iPod, which may include some jailbroken data, such as a custom carrier logo!