For the last few weeks, the ON/OFF button on the top of my two year old 3Gs hasnt been working. I can depress it, but nothing happens, i.e. I cant power off the phone or turn off the screen. This hasnt been a problem since I dont mind the phone staying continually on (and I havent taken a flight recently), but Im afraid of what will happen when I have to leave it unattended for several days next month. During this period it will inevitably shut down due to drain on the battery and I fear I wont be able to resuscitate it and it will be dead forever. Has anyone else come across this problem with the ON/OFF button? Is there any way to power on this phone without the ON/OFF button? If I recall correctly I still need to use the ON/OFF button after reconnecting a completely discharged phone to a power source. Is my 3GS phone doomed when I have to leave it for several days next month? Although Im OK with committing to a new 2 year contract, I was hoping to do so with an iPhone 5. I really dont want to have to purchase an iPhone 4 so close to it being replaced. Thanks for any help.