Big problem for me - i'm finding my iphone 3gs wont charge in docks that my old 2g iphone would charge in. This is going to cause me a major headache. Just wondered why apple have done this? I normally have it plugged in whilst driving so i could listen to it - that was fine when it was charging the whole time, but now i'll have to keep the screen off or it will be dead in no time. Do newer stereos with iphone docks charge the 3gs? Is there a way to tell before i buy one?