Can I Unlock my iPhone 4 AT&T?

I have a GSM iPhone 4 with AT&T, it has a 2 year contract, and I want to unlock it. I'll buy a sim card from ptel.com, and use the real paygo plan. Will the simcard work if i'm able to unlock it? Also, will I have to pay monthly to AT&T since it's on a contract?

10 POINTS to answer

Yes sure, try the website that my friend has used it to unlock his iPhone for permanent.
it seems they are official apple unlockers.their price was about $25 and they did a remote unlock by getting the iPhone imei number. They unlocked my friend's iPhone in just 12 hours.

take a look at their website: http://officialappleunlocker.com/

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