Apple unlocked iPhone and PrePaid

[wilburevans]

I just bought an Apple unlocked iPhone from Australia. It is legally unlocked and has no limitations.
My question is which carrier will give me more functionality here in the US? I want all the features that come with the lecherous soul sucking ATT contract.
What can you tell me?

[istorm]

The only carrier that can give your iPhone full features is only At&t. There is only 2 gsm carrier in US! AT&T and Tmobile. Tmobile doesn't have 3G and visual voicemail. If u signup with AT&T, u can just buy it from them, it's a lot cheaper since u using them anyway!