Can I trade in my existing phone for a Verizon iPhone?
Not eligible for an upgrade yet? Verizon customers can purchase the iPhone 4 without a contract at full retail price. You can also help defray the cost by trading in your old phone with the Verizon Wireless Trade-In Program. The going rate for a used phone can be determined at the Verizon trade-in website.
Although you will not receive a cheaper price on the iPhone 4, any credit from the old handset will be paid on a Verizon Wireless Gift Card. This can be applied to the purchase of an iPhone 4.