Are the GoPhone SIM cards 3G? If they are, then are they compatible with any 3g capable (AT&T) cell phone?

Also, do AT%26amp;T retail stores sell refurbished GoPhones? Thanks for the answers.

Are the GoPhone SIM cards 3G? If they are, then are they compatible with any 3g capable (AT%26amp;T) cell phone?
All AT%26amp;T sim cards are the same. Doesn't matter which one you get. It will work with 3G. No, AT%26amp;T stores do not sell refurbished phones. Only the AT%26amp;T web sites sell refurbished phones.