been in the works since release day, but in some parts of the world, entrepreneurs are taking matters into their own hands. Enter Vietnam's Tuan Anh Do, who employs a team of some 30 technicians diligently tearing iPhones and iPhone 3Gs apart to remove the baseband chips, reprogram them, and solder them back into place at a charge of about $80. Considering that the end result is a totally carrier-unlocked device, the cost could be perceived as reasonable by some Vietnamese who desperately want an iPhone on the domestic carrier of their choice -- but there's the ever-present risk of re-locking, which 2.2 conveniently does. Of course, that just means more business for Do, who charges another $50 to unlock re-locked handsets. All told, probably not a business model Apple would approve of -- but it's pretty awesome that a single handset has given rise to an entire cottage industry.