Currently Being ModeratedApr 23, 2013 8:26 AM (in response to lawrence.91)
Apple handles this problem with perfect replacement iPhone 4S exactly same as yours, same color, same GB etc for $199. If you want to try Virtual Lock Button, tap Settings App > General > Accessibility > Assistive Touch > ON > tap new white screen button > Device > Lock Screen. This can be used to turn iPhone OFF. To turn iPhone ON connect to power, charger or USB of computer.
Currently Being ModeratedApr 23, 2013 7:32 PM (in response to brad805)
I actually am using this temporary fix.
Though $199 or however much in UK, is quite a steep price for a 2 years old product.
I am quite torn between getting the new iPhone later this year or just get a replacement and hold on for another year or more.