So I am considering purchasing an iPhone.  My family currently has a family plan with AT&T.  I have a blackberry and we some other type of phone something like a blackberry (Palm or something) and just a normal cell phone.  If I was to buy a iPhone would I need to start paying for another data plan specific to the iPhone or will my family plan work?  Does it take a seperate catergory of minutes, texts, data, etc for the iPhone or will it act like just another phone when added to our family plan?  I had heard you have to get a totally seperate plan.

 

Thanks!!!!!!!!!!