RadioShack has announced that it is now offering “refreshed and remanufactured” Verizon and AT&T iPhones. According to the company, customers can receive a free iPhone 4 with an upgrade or new two-year contract, and can purchase 16GB iPhone 4S models for either carrier for $100; 32GB units run $150 on AT&T and $200 on Verizon, while only Verizon-ready 64GB units are available, at a price of $300. In addition, the Verizon models…
