A friend of mine that works for a Cellular Carrier here in Canada told me that - Whenever a user Jailbreaks their device, a small piece of information is then sent from the device, back to Apple's servers then the phone itself is flagged as being Jailbroken, thus voiding the warranty. PERSONALLY - I dont think this is true - I mean, I know Jailbreaking is legal, yes... I also know that when you do Jailbreak it will void the warranty of the iDevice (but then, restoring fixes that issue) I tried to explain that Jailbreaking is legal - which he agreed, but it is to his knowledge and such within his company that apparently Apple does indeed receive confirmation that Jailbreaking has occurred... Could anyone verify this? Second question - Also, Here in Canada the iPhone 4 is unlocked. When I told him that I could take the SIM card out of my other friends iPhone 4 who is on Rogers, and put it into my iPhone 4, which is on Bell - that it would work - and he thought that this was absolute rubbish and wouldn't work at all... Just for the record. It does work. I've tried it... AND - just for the sake of asking... he also said that you can 'UNLOCK' any iPhone by pressing a few numbers into the keypad - and voila. Im just trying to get a bigger perspective on this... notion.