iPhone 4S 16GB - White - Unlocked - 10 months warranty + with VAPOR PRO cover *

On sale is iPhone 4S - white - 16GB - with Apple warranty until 23rd June 2013. Handset is officially unlocked by Apple. I bought Vapor PRO - White Aluminium Case - from Day 01 so its screen protected and shock protected. I want 325 or can swap with unlocked Samsung Galaxy S3.