Yes. You can charge your I-Phone when it is turned off.
You cannot unless, you have mobile-me and its turned on and has internet active. Sorry.
Sadly, no. It has to be on.
Unfortunatly if you didn't sign up for MobileMe when you bought your iPhone, you are out of luck.
If the GPS is turned off, then it is alot harder to track.
The iPhone will always have the capability of being tracked unless you take off the gps service which will not stop it from being track but make it less accurate
It is possibly that it is either broken, or maybe you have to charge it.
No, just get an iphone
Not possible.
No. You can download the FindFriend which may be compatible with Android and iOS. If you desire to track the non-iPhone, you should make sure that the non-iPhone and you open this app at the same time.
You have to put a small tacking chip in the sim card and download an app on your 4s to track it
Well you can only track iPhones and you use find my iPhone.