Iphone4 black Will exchange for a white One ! -

iphone4 completely covered with screen protectoring back with dimond covering the phone is in a great state it has recipte and 12months warranty at the orginal store , i want a iphone4 white or 4s dont mind i will add extra only for the 4s. The reason im swapping my phone is i want a white one or it can sell for 230 call me or email me for more info will swap for 2 or 3 blackberrys. thanks Amir