Again, as far as Verizon goes,
there is no exclusive.
This was also pointed out by Verizon when the Rural Cellular Association asked Verizon to help them get the iPhone after six months of exclusivity, which is Verizon's new policy. The
reply:
Verizon issued a statement saying that because they don’t have an exclusivity deal with Apple regarding the iPhone (like AT&T did), they aren’t held responsible to the commitment Verizon made back in 2009. More or less, Verizon said, “Talk to Apple.”