So some people are willing to spend 600 euro for an unlocked iPhone in Germany. According to customers who have bought the unlock iPhones, their IMEI number is recorded after their purchase and sent to Apple. 24 hours later, the customers were able to connect their iPhones to iTunes and get it unlocked. I'm guessing it won't take long until the hackers start looking into iTunes unlocking mechanism and release their own unlocking solution using the iTunes.

Source [macrumors]

Source: SlashPhone