most people don't supply iphones that are jailbroken luckily you can do it both on mac OS x and windows operating systems you might have some trouble on Linux just check a YouTube tutorial
eBay or buy a regular one and do it yourself.
You ll get for not jailbroken . Factory unlock will sell for more.
You dont
You can get free ringtones for a non jailbroken iPhone 4, 16gb online at mobyware.net.
No, you can even unlock the iPhone when Jailbroken.
Yes you can.If you have an jailbroken iphone you can get it for free
Yes but your iphone has to be jailbroken and have Cydia.
no
A "cracked iPhone" could either be an iPhone with a cracked screen. Or a, as more commonly called, "jailbroken iPhone".
Yes, you need an unlocked & Jailbroken iPhone. Which isn't cheap.
You will most likely have to get a used iPhone from eBay or somewhere, and then get it jailbroken (unlocked) so that you can use any SIM card.
You need to be plugged into iTunes to update the latest software and it isn't always recommended for those that are Jailbroken.