No i-Phones work with all mobile phone service providers.
Sprint has the cheapest iPhone plan right now. You can get an iPhone plan from them right now for only $69.99.
AT&T.
no
You might be able to, but to be certain you would have to talk to your service provider directly, since they are the only ones that can interpret the contract that you currently have.
Contact the service provider you wish to be with for it to get the plan.
The iPhone is only available for AT&T and yes, there is an iPhone-specific data plan that is required. iPhone's that have been "unlocked" can be used with other carriers such as T-Mobile or Verizon, but even then an extremely large to unlimited data plan would be required (otherwise, you would have a LOT of overage charges since the iPhone is connected to the internet at all times).
You can use the AT&T iPhone coupon code if you plan to purchase an iPhone. You can not use it if you plan to buy another phone.
There is no way around paying for the data plan for the iPhone with AT&T. It is required for the entire duration that there is an iPhone on the account. The iPhone data plan is $15.00/month for the DataPlus 200MB for iPhone or $25.00/month for the DataPro 2GB for iPhone, in addition to your voice plan and other features that you may choose. AT&T frequently runs a sweep of all of its accounts and if it finds an account with an iPhone and the iPhone data plan is not on the account they are adding it, no questions asked.
The iPhone data plan is a requirement and this plan is $15.00/month for the DataPlus 200MB for iPhone or $25.00/month for the DataPro 2GB for iPhone, in addition to your voice plan and other features that you may choose. AT&T frequently runs a sweep of all of its accounts and if it finds an account with an iPhone and the iPhone data plan is not on the account they are adding it, no questions asked. Here is what AT&T says on their web site ... Please note: Data plan for iPhone is required for the life of your iPhone service and cannot be removed in the future. Data Plan for iPhone includes unlimited data in the U.S. Access rich HTML email and desktop-level web browsing, as well as Visual Voicemail to listen to voicemail messages in any order you choose. Please note: AT&T is Apple's exclusive carrier partner for iPhone in the United States. An eligible data plan for iPhone is required. This data plan covers data usage in the United States and does not cover international data usage and charges. If AT&T determines that you are using an iPhone on your account without an eligible data plan, AT&T reserves the right to add an eligible data plan to your account and bill you the appropriate monthly fee.
Yes
It is $30
no