Rates when adding iPhone 2G to family plan?

[justaphase094]

I am currently on a family plan with three regular phones and I want to replace one of the phones with an iPhone 2G. How will this work if I'm currently paying $30 for unlimited text messaging on the plan? And I would only have to pay the old $20 data plan for the iPhone right?

 

[Rob Mclovin]

On the iphone the data plans gonna cost you 20 bucks. And then if you want unlimited text,it will be another 20. then 10 to that since your an additional line so around 60 bucks.