Jus pay for the iPhone five without the supplement and you can keep your plan.
Verizon customer here. Basically, I can upgrade to 4s before June 28th and keep my unlimited data, or I can wait for the iPhone 5 and pay the same $30 for 2gb a data. I am a person who uses a lot of data and I think it's really nice to not have to worry about how much data I'm using, and I guess a lot of Verizon customers agree because they are all outraged at these new share data plans. I mean, is the iPhone 5 really going to be that much better? I feel like it will just be a bigger screen and faster, but really the software is going to be the same because of iOS 6. I also think the iPhone 4s is like the perfect size already. I could definitely try to limit my data use to under 2gb, but the current phone I have is really screwing up (HTC Thunderbolt), so I don't know if I can wait any longer! So what's better, an iPhone 4s with unlimited data or iPhone 5 with 2 gb of data.

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