xperia arc s in white. just 2 week old. swap only! ?

I have a xperia arc s in white... bought it from phone shop only 2 weeks ago! It is in immaculate condition, not a mark on it! It comes boxed with charger! Wanting to swap for either: samsung galaxy s2 in white Blackberry bold 9900 in white Htc sensation Xl Iphone. Thanks:) Please text 07908848527 for more information.