I was told by AT&T store that if a new micro-sim is needed it would cost $15 I was told by AT&T customer service (phone) that in some instances to do a Sim exchange for a micro-Sim it could cost $15-$25.
Search Google for Micro Sim Card cutting tool. There's a company that came out with a simple tool similar to a hole puncher that would perfectly cut a normal sim card to micro sim card size. These things sold out the first day the company released the tool for sale.
is it possible to put an active sim card from another ATT phone into the Iphone 3 or 3g and use the iphone as your "new" phone? do i need a data package in order to use the iphone internet? if so, can i use the same $15 data package i have on the old phone instead of the $30 iphone package?