Want to use Xperia X10 with no data service
I found a used Xperia X10, I called the seller and he claims it is unlocked, and that ATT won't see it as a smartphone or whatever. I want the phone, but I want to make sure that ATT won't charge me randomly for data. So can I opt out of Data, or cancel data on the line if I get the phone. Is there a way I can get the phone, put in my SIM card and only use the calling and texting that I've been using currently on my Samsung Impression?
Thanks in advance!