Apple iPhone 4 16gb Black Factory unlocked SIM FREE for SWAPS ! ?

Fully boxed . Factory unlocked, sim free . not a contract phone !! May swap for Nokia Lumia 900 or 800 -( if Lumia 800 plus cash my way) . or what u got ?? ***Not interested in BlackBerry and Android phones at all*** dont waste your time :) email me for quick response . cheers .