OK, in November 2010 I had an iPhone 3GS 16GB die - it all of a sudden stopped working while using my Altec Lansing inMotion iM600 dock. Black screen, won't turn on, and got very hot even hours after unplugged from the dock. Apple replaced it with another 3GS 16GB. Last week, same thing - on the Altec Lansing inMotion iM600 dock - died. Black screen, won't turn on, got super hot - stayed hot for many hours. Apple won't replace since its out of warranty. So I got an iPhone 4 (Verizon) on Thursday. This morning it died suddenly while just going for a walk around the block. Won't turn on, and its getting very hot just sitting there not plugged into anything. I've never had an opportunity to use this phone on the Altec Lansing inMotion iM600 dock however. Is it possible some accessory of mine is killing these iphones? I have a few of the USB chargers/charging cables from apple that i've collected over the years. I've got two at home, one at the office. I have an Altec Lansing inMotion iM600 dock. I have an iHome iP41 Alarm Clock at work. I have a Griffin PowerJolt SE cable for the car. Is it possible something is shorted out and killing these phones? I did notice when I plugged the iPhone 4 onto the iHome iP41 Alarm Clock at work on Friday, it said "This accessory is not optimized for this iPhone" and brought up a message about cellular interference. It seems this error is frequently associated with dirty dock connectors - I wonder if the iP41 shorted out the iPhone 4 and killed it, but it took fri/sat/sun to die.