This will never work. It's too popular. You could never get enough signatures to keep the iPhone off Verizon. The only way it will stop being sold on Verizon is if it doesn't sell, which it will.
And they don't have to change the network Verizon uses, they just have to change the radio in the iPhone to make it a CDMA phone. Not that hard to do, although they do have to modify the software. But if Apple thinks it will make them more money, which it will, they'll do it.
And I'm not an Apple fanboy or anything, but people DO have to realize that not everybody that wants a smartphone needs all the openness of Android. Some people are more than comfortable with the iPhone, because it does what they need it to do. It's just a matter of opinion to which phone you want and use. Just because you think Android is a better OS for you doesn't mean it's a better OS for someone else. Not everyone writes their own programs or needs the latest camera technology in a phone, or knows how to fix all the bugs that Android phones tend to have (silent bug, 50% without signal, etc.). It's all just a matter of opinion.