I bought my 8Gb iPhone 3G in March and have kept it in a leather case. Recently the button that toggles between normal ringtone and vibrate mode fell off as I was switching from one to the other. I use this a lot (silent mode for meetings etc) and now the insurer has refused my claim. Is this a common problem? If so, I suppose I should claim under the guarantee rather than insurance cover (via Darty in Carcassonne, France) because the insurer perhaps regards it as a manufacturing fault rather than their responsibility. Meanwhile, it's useable of course - or it was until it was knocked into 12inches of clean stream water and now I'm waiting to see if it'll work at all after drying it out.