iphone 4 16gig black boxed for swap................ ?

my iphone 4 is boxed its black 16gig its in excellent condition its on3 network swap for white boxed 3gs and a bit cash or a white boxed s2 with a bit cash or will sell for 250 cash ovno or open to other swap try me plz no blackberrys its for collection only no time wasters plz text or call 07402918236