It seems at least a couple of you guys are abreast of what's what in the USA at the moment for smartphone users, so I hope you can give us some advice.
On a previous trip we have opted for cheap GSM burners on AT&T. This time around we will be visiting the western third of the states for 3 months (Mar-Jun) and have iPhone 3GS phones which we intend to use.
A plan isn't normally all that clever for transients. We are low volume voice/text users and presently use v.little data (current allowance is 50MB/month and that has never been threatened). I understand that in terms of coverage AT&T are ahead of T-mobile (tnx miso). So the question is really who has a pay-as-you-go (i.e. pre-paid, no doubt) deal that we should look into, including network resellers?