Have an iphone 4 with a home button that is occasionally unresponsive. It works the vast majority of the time, but once in a while, I have to press it an additional time or sometimes I've had it go unresponsive as 4-5 additional presses but those are rather rare. I've been researching on forums and I've definitely seen several threads with the same issue but I'm not sure whether this is something I'll be able to replace at the apple store, as I'll likely be unable to reproduce in store. There doesn't seem to be any consensus on whether it's a software or hardware issue, but my button click itself is pretty solid so at least on appearance, it doesn't seem like anything's wrong, but the unresponsiveness has been often enough that it's been noticeable. Anyone with the same symptoms been able to successfully replace theirs at the apple store?