The short answer is no. You bought your iPhone so what you do with it is up to you, if something goes wrong with it and you bring it back to Apple and show them your jailbroken iPhone (which is a very stupid thing to do) they will most definitely void your warranty. If you do go ahead and jailbreak your iPhone or iPod touch it is a good idea to create a backup through iTunes of how your iPhone was originally, just in case you ever have to bring it back to Apple. Many of the third-party applications out there are made by developers who don’t own the rights to the games they leak on the jailbreaking forums, if this ever becomes an issue simply go back to your backup or just delete them. There is a small chance of your iPhone or iPod touch turning into a brick, when your iPhone or iPod touch is unresponsive and useless. Just reset your iPhone by holding the home button and sleep button at the same time and reinstall the most current firmware update. I highly doubt Steve Jobs will come knocking on your door to see if you have a jailbroken iPhone or not so don’t worry too much, go ahead and jailbreak away! Just be sure to have your iPhone backed up and be ready to reset it when visiting the Genius Bar.
If you want to learn more about iPhone Jailbreaking visit iPhoneSpies.com
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