Iphone users

jewelsonu

My contract is up on my phone and I can get a new phone.  I think I want an iphone.  We already have the everything plan on sprint and if I cut my early nights and weekends then the price of the plan stays the same. 

Are all apple chargers interchangeable? 

Do you buy your apps from the itunes store?  So I could use itunes giftcards? 

Can you play your itunes through the phone like an ipod when you drive? Do you need a fm transmitter? 

Is the 4s better than the 4? 

How does it hold up to grubby little hands?  Does the screen break easily?