wanted iphone 4....... 16gb.......swap a galaxy s 2. 16gb black ?

black 16gb with 4gb micro sd card also so total 20gb memory. locked to 02 pay as u go mint condition boxed.charger included. had screen protector on since new .3/4 months old only. prefer swap than sell. for iphone 4 on 02. or unlocked.....16gb or higher needs to be good condition as mines mint. prefer collection as i dont drive thx for reading/call/ text/email .