A Jailbroken Iphone is a Iphone that has been revealed with a code to access the firewall to tons of Iphone background images. Jailbrakeing your Iphone has some of these consuquenences;
1. Owners say that if you Jailbrake a phone, you can become tracked down easier from your moblie carrier than a iPod Touch.
2. You can't access iTunes
3. People say that you wont get caught, but have to pay a fine.
4. Jailbrakeing your Iphone can become reseting files from mirco sd cards or on your Iphone.
You ll get for not jailbroken . Factory unlock will sell for more.
You dont
No, you can even unlock the iPhone when Jailbroken.
Yes but your iphone has to be jailbroken and have Cydia.
Yes you can.If you have an jailbroken iphone you can get it for free
You can get free ringtones for a non jailbroken iPhone 4, 16gb online at mobyware.net.
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 need to be plugged into iTunes to update the latest software and it isn't always recommended for those that are Jailbroken.
You don't need to be jailbroken now that the iPhone supports most carriers. The iPhone 4 is physically unable to switch from GSM to CDMA carriers anway.
No This is not possible as the iPhone Does Not Have A Mouse And Has To Be An Application Created With The iPhone SDK.