Blackberry 8900 in great condition swap for iPhone 3g/3gs/4/4s !

I have a blackberry 8900 in great condition! It is is a great phone, every thing works perfectly. It is just like new! New battery fitted not long ago so holds GREAT charge and it takes no time at all to charge! The trackball is BRILLIANT must better then a trackpad! I love the phone but I would like to own an iPhone, everything has got to work and the condition must be atleast 7/10! It also needs to be on orange or unlocked. Thank You, Phil (The phone is NOT for sale just swap!)