Sprint has confirmed that it will offer an unlimited data plan for the iPhone 4S. The unlimited data pricing plans for iPhone on the Sprint network will beginon Friday, October 14. Sprint's new and existing customers can pre-order iPhone 4S beginning on Friday, October 7 at 12:01 AM PST. In addition, beginning today, iPhone 4 with iOS 5 is available for just $99.99 through sprint.com/iphone.

iPhone 4S will be available from Sprint starting at $199.99 for the 16GB model, $299.99 for the 32GB model and $399.99 for the 64GB model. iPhone 4 will cost just $99.99 for the 8GB model and is available beginning today. These prices require a new-line activation or eligible upgrade and two-year agreement.

iPhone 4S and iPhone 4 require activation on one of the Sprint Everything plans with Any Mobile, AnytimeSM, including unlimited data, texting and calling to and from any mobile phone in America while on the Sprint Network.

Plans start at just $69.99 per month plus the required $10 Premium Data add-on charge. Sprint's Simply Everything Plan is the only plan from a national carrier to offer truly unlimited calling, data and text for just $99.99 per month plus the required $10 Premium Data add-on charge (all while on the Sprint network). The Mobile Hotspot option will be available for an additional $29.99 per month supporting up to five Wi-Fi enabled devices simultaneously. (Pricing excludes taxes and surcharges.)