Unlocked AT&T iPhone 4 inactivated?

I have an at&t iphone 4 inactivated and I need to unlock it so I can use it on the Straight Talk system. I was wondering how I could do this NOT illegally. At all possible?

It is illegal now to unlock a phone, how can it be legal to unlock the phone? But you can always get the phone factory unlocked instead of software unlock. You can mail this person (arghyle@rocketmail.com) who can help you get the phone factory unlocked.