blackberry 9860 swap for iphone 4? .

Hello, i am selling the new touch screen blackberry 9860 torch. the phone is in average condition with a bit of wear and tear on the screen and on the outsides. internally the phone is in perfect working order, i bought and have owned it from new so i know the history of it, never opened as the seal is still on the screw, and never has had any problems. It comes with box, charger and phone, the back of the phone was lost so i will include a silicon case that cost me 25