Good news for current Verizon customers: the latest U.S. iPhone carrier has posted its FAQ on the iPhone 4, and it turns out that a $200 credit will be given towards an iPhone upgrade. However, not everyone will qualify for this credit.
If you purchased a new smartphone from Verizon Wireless between November 26, 2010 and January 10, 2011, you should be eligible for a $200 credit towards an iPhone 4 upgrade. This credit should be available as long as your purchase the iPhone on Verizon before February 28.
Verizon's FAQ has some interesting answers for current (and potential) customers who might want to use their available upgrade on the iPhone 4...