Iphone 4 16gb Immaculate Condition For Sale/Swap !

hi, I am selling my iphone 4 16gb due to an up grade, it has always been in a cover ...it has got hardly unnoticeable scratches on the back - not a single mark on the front of the phone. the comes with usb cable and its locked to t-mobile and orange. and its very cheap to unlock the phone. i am not desperate to sell the phone so please no silly offers. i may swap - but not for another phone or an ipad maybe.