I read somewhere that ATT is the sole service provider for the new iPhone 3G. I am planning to buy the iPhone but your current service provider is Verizon I am happy with your service provider?

The new iPhones come with a SIM lock which means it is not possible to change the service provider of the phones. There are grey markets vendors who might help you break the S (MORE)
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Can you buy an iPhone and just put the sim card from your existing ATT 3G phone in I did so in my brother's iPhone and got service and wanted to know if there was a way to do this with a new iphone?

An AT&T 3G sim card will work in a new iPhone. yessss you can :) but the box for the iPhone comes with a little tool to help you open the little compartment for the sim (MORE)

3g service provider in India?

BSNL, MTNL & Tata Docomo,Aircel,Airtel are currently providing 3G services. Reliance Mobile is done with it's Employee Launch and will be making 3G service available to gen (MORE)

Why does att advertise the iPhone 4S as a 4G when it is actually 3G?

First of all, there is 2G (or EDGE), 3G, 4G, or 4G LTE. Many people just call 4G LTE 4G because regular 4G seems more like 3.5G. Keeping up? AT&T's 3G network is known as (MORE)