Verizon CEO Ivan Seidenberg has stated that he doesn’t think the company needs to immediately respond to the iPhone. Speaking at the NXTcomm trade show in Chicago, Seidenberg said, “The way we come at this is to let the iPhone hit the market.” He continued, “I don’t think it changes the game plan for how we approach the market. But we need to see the impact. The burden is on (AT&T and Apple) to prove the market will…