galaxy s2 16gb sell or swap for iphone 4 -

looking to sell or swap for iphone 4 16gb, galaxy s2 is in mint condition comes with plug and usb lead just cant get on with the android os much prefer ios, has box also and is unlocked, really is a quick phone due to dual core processor. Just google samsung galaxy s2 for full specs. Small roundup of phone, 8mp camera with hd video recording, 16gb internal memory expandable via memory card. Latest ics firmware updated yesterday. any questions please message me