Iphone plan question

[bpurcc217]

I have AT&T right now, im on a family plan with 4 lines on it. Would i be able to upgrade from my normal $15 phone to an iphone and stay on the family plan and pay less or would i still pay 60/80/100 per month. And yes, i am eligible for an upgrade. I saw a plan line for existing AT&T customers that costed 20,30,and40 instead of 60 80 and 100. help please thanks

[janey]

Eligibility for upgrade is irrelevant.

But basically, yes, it's just an additional $20/month to replace your current phone with an iPhone on the family plan.

[bpurcc217]

so i would only have to pay $20 more for the iphone plan 200 SMS?