The iPhone 5 has already come out.
iPhone 5
Considering the iPhone 5 was already released, go on and get that iPhone.
You cannot modify the iPhone 5's settings normally. The only way you can do it is if you jailbreak your phone.
They currently all have iPhone 4s'/iPhone 5's.
It depends on different peoples preference's. personally i use the iPhone 5
There is no iPhone 6. The iOS can be downloaded to earlier handsets, yes.
no, as long as your iphone is on the latest software version it is secure.
about 5-7 weeks
It means Iphone 4 (For) S (Steve). They postponed iphone 5 and let out an immediate new iphone called Iphone4S due to Steve's days coming to an end.
After Iphone 5 is the Iphone 5s
An iPhone 5 is the latest version of the iPhone. The iPhone 5 is the lightest and slimmest of all the iPhone models.