Unless you are in a Metro area, most people do not get the 3g they pay for. It's spotty coverage at best and if you are in a rural area you are practically guaranteed to be on edge more than 3g if at all.
I suggest picking up this months issue of Mac Life. The feature is "5 reasons why you should, and 5 reasons why you should not, buy the 3g iphone".
you can also subscribe online for instant access to this months magazine.
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