When I am working out for more than 30 - 45 minutes, I find that the iPhone earbuds will stop working properly. The microphone button becomes inoperable. It does not do anything when clicking it and it does not function on a phonecall. The music from the iPod will skip around, sometimes just pausing randomly and starting back up randomly, skip around to differnt parts of the same song, or even other songs, and once, the iPhones screen starting flickering on and off from app to app. This only happens when I have been working out, running, lifting weights, etc. in the gym for more than about 30 - 45 minutes. Shutting down the iPhone and turning it back on does not help. About 15 - 20 minutes later, the earbuds microphone will start working again, and everything will be back to normal. I know this has been brought up in the past, but not resolved yet. I hear it is a known issue to Apple. Does anyone have a link or proof of this or has Apple released a statement regarding a solution or at least aknowledgement of the problem? My brother-in-law has had the same problem with his, and I have read it from others on the forums so I know it is not just me. Thanks!