I've had my Iphone4 for over a year already and already out of the one year warranty. I'm on jailbreak 4.3.3 OS. My home button has been non responsive for the past few months at the least. I've always had my phone jailbroken since i've gotten it. The problem is that double tapping it always takes a few tries to multi-task. Also, pushing the home button once some times does not work as well. It is extremely frustrating. I don't know if it is a software or hardware problem. I thought jailbreaking to a newer OS would solve the issue. After jailbreaking to 4.3.3, the problem persisted. Is anyone else experiencing this problem?