iPhone from America.

[BoomAM]

Hi.
Im going america in about 2 months time on holiday.
Apart from the usual guff like clothing, i cant think of much to buy myself.
Apart from an iPhone 3g.

Q: Can they be bought without a contract, and if so, how would i go about using it over here?

Thanks in advance all. .

 

[BoomAM]

Well thats that idea out the window then! .