I'm going to be getting an Iphone tomorrow from the Apple Store. I already have a Blackjack phone w/ATT and Phone and Data Plan. What do I need to do out of the box to get my BJ Sim card to work with the Iphone? From what I understand, the IPHONE Needs to be ACTIVATED before use. Any way this can be bypassed? I read some people talk about an app called ZiPhone. Will this pretty much do everything for me with one button? Thanks..!