yes my phone is an unlocked GSM. It also supports EDGE.
In this
post, you say:
"Wind GPRS performance is usually better than TIM (but TIM has EDGE)"
I don't understand if EDGE is better or not. If I have the choice of EDGE with TIM or GPRS with Wind, which do I want?
Also, if I purchase a SIM card in one province (state) and then travel to another, will I have roaming charges? Is the internet more expensive if I use it in a different province?