For about the last week I have been noticing the home button on my iphone 4 randomly acting a little quirky. It seems that sometimes, but not always, pressing the home button once, and only once, will activate the multi-tasking function. I ignored this the first few times it happened. Then I started taking note of how I was pressing the button. But i didn't notice anything different. I cannot seem to duplicate this phenomena with any consistency. I have tried pressing the home button for different lengths of time and also pressing down more on various parts of the button. Sometimes the multi-tasking menu comes up, sometimes it doesn't. I have searched various forums for info related to or similar to mine. Yet I didn't come up with anything. Has anyone had a similar experience? Or does anyone have any advice as to a course of possible correction? I have restarted the phone several times and have restarted the network settings once. I have yet to try a system sync and restore.