Recently my iphone 4 was stolen, and of course i bought it under a 2-year contract agreement. Right now i am using my old 2g iphone that is just about to fall apart in its place. I was wondering however, if i did an add line (still will be only me using the service) and received the newer iphone 4 for a discounted price would i be able to reduce the old iphones line to a no data plan/no sms line by using an old non-smartphone in its place(swap sim)? SO basically my goal here is to pay only $9.99 more every month in order to buy an iphone 4 at the discount price. Will that work? Any reasons to think of that might cause this to backfire? Thanks in advance for any input.