I have a jailbroken Iphone but I did not jailbreak it personally (friend did it for me). But i have downloaded QuickPwn and the update and i need to know if there is any downsides do jailbreaking the iPhone, such as possibly bricking it, or messing it up in any way? I have AT&T now and i would like to keep that service (if that is possible after jailbreak) and i was wondering if there was anyway AT&T could see that i had homebrew apps because ive heard they can monitor your phone and shut down your service if they see you have anything like that (installer, cydia).