Behind the scenes: Unlocking iPhones in Vietnam

On Nguyen Du street is one of Tuan Anh Do's shops, in a relatively small, quiet block in Hanoi. It's located in a typically narrow four-storey house, with one floor serving as a reception area and another holding the accounting department. The top floor is the workshop, where the magic happens.

Here I witnessed a brand new iPhone 3G getting its hardware unlocked and was really impressed.