Can I use unlocked iPhone in USA?

Hi, this might be a dumb question to you in the states, but I'll be back in the states for 6 months and don't want to get stuck in this stupid 2-year contract thing. I am bringing my unlocked iPhone 3G and am wondering...is there a company I can buy a prepaid SIM card and use in my iPhone for a few months? I know a website "www.mrsimcard.com" sells one, though I think it is a ripoff. $80 for a SIM that I have to buy credit for? Is that a good price? I paid $10 for mine.

I have a SIM card now, but I'm quite sure it won't work in the states, and I wouldn't want to with roaming. What do people with bad credit do in the states, those who are unable to pass the credit check?

Cool

TEG said:

There are several companies that sell pay-as-you-go services...you can walk into nearly any store in the US and buy a pre-paid phone, just make sure it is GSM, then remove the SIM and stick it in your iPhone.

TEG

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Cool, I didn't think of that!

Gophones

DanielNTX said:

http://www.wireless.att.com/cell-phone-service/go-phones/

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I thought they ere cancelling the GoPhone thing as related to iPhones, forcing everyone to get a plan?

Uh oh

jdylan said:

Cool, I didn't think of that!

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Except I'd have to buy a phone....