Iphone 4 16GB BLACK (unlocked) for quick sale due to upgrade ?

Iphone 4 16GB in black unlocked to all networks. Bought brand new 11 months ago, now selling due to upgrading to iphone 5. Great condition, everything is in perfect working order. I have all the original accessories, including the plastic bag from apple store. The phone is in Croydon, so get in touch if interested.