HTC Desire (Boxed Excellent Condition) Swap for iphone 4 + CASH !

I looking to swap my Boxed HTC Desire in Excellent Condition for a iphone 4 / 4s plus Cash Htc Desire is on vodafone and need the iphone to be vodafone or unlocked Please contact me if you can swap, with details of model etc and condition plus cash wanted Thank you Paul