Iphone 4 16gb Black Boxed (02) Swaps ?

iPhone 4 16gb on O2 network and giffgaff in pretty good condition and comes with the box,charger,USB cable and headphones. The phone has carbon fibre covering on it however phone is still in good condition and in full working order...Want to swap or sell for 240... Must go ASAP 07900334459 call or text me for more info Thanks Im selling a blackberry 8520 white condition is good beside one one crack on the top left of phone. the phone is working great no problems.i will sell it with just the charger. Collection only.Please call me for any more information. iphone 3gs 8gb very good condition origional box and accesories factory unlocked full tech spec Black 8GB flash drive Cellular and Wireless UMTS/HSDPA (850, 1900, 2100 MHz) GSM/EDGE (850, 900, 1800, 1900 MHz) 802.11b/g Wi-Fi Bluetooth 2.1 + EDR wireless technology Location Assisted GPS Digital compass Wi-Fi Cellular Display 3.5-inch (diagonal) widescreen Multi-Touch display 480-by-320-pixel resolution at 163 ppi Fingerprint-resistant oleophobic coating Support for display of multiple languages and characters simultaneously Camera, Photos, and Video Video recording, VGA up to 30 frames per second with audio 3-megapix T-mobile vivacity smartphone, No