Many people from all over the world got their hands on Apple's iPhone for the discounted contract price and then unlocked the phone but according to various sources this won't be possible with the iPhone 3G. This time you'll be forced to sign a contract or you'll go back home empty handed.
It's obvious why this has happened though. This method means you're tied into a contract, or you're paying O2 and Apple a massive wodge of cash for the privilege of owning a 3G iPhone. We're disappointed about this decision, but it does make business sense -- and the official apps do take most of the sting away. But before you go and buy one with dreams of unlocking it, you have been warned.