Iphone white 4s trade for blackberry 9900 !

Hi i recently got an upgrade from my blackberry torch to iphone 4s and i prefer blackberry so would like to switch my excellent condition white iphone 4s for a brand new blackberry 9900 SONY ERICSSON C905 SIM FREE (NIGHT BLACK) The Sony C905 Cyber-shot is set to re-define the way in which mobile camera phones are classified through its amazing state-of-the-art 8 megapixel digital camera Face detection and Auto Focus Transfer music, videos and photos to and from your phone Accelerometer - auto-rotate: Enjoy your pictures in portrait or landscape mode Memory: 160MB and expandable with Memory Stick Micro (M2) with spare battery for only 45.00 New never been out the box, no idea why I bought it well over 130 when I bought it, someone will get a bargain here model CK-7W 45 Post UK Mainland 4 If your looking at this ad its still for sale Apple IPhone 3GS 32GB On orange Comes boxed with charger & case The phone has a few marks on it. 1 on the apple sign 2 few light marks on screen see pics Used condition Full working order Selling as ive brought a new phone Delivery available Hiya I need an iphone in good condition asap. Preferably on orange as Im still on contract till next year. Mine was stolen last week and Im not insured so need one as cheap as possible Im in Oldham but am willing to travel to collect Thanks