I'm curious about your approach to using a cell phone in Europe. I've always thought the easiest and most economical way to do it was to take MY GSM phone from the states with me, and then just buy a SIM chip from any convenient provider. They usually run about $25, if I remember correctly.

By using your home SIM chip in any European phone, I assume you get the advantage of keeping your phone number and all your stored numbers with you. What about exorbitant roaming charges assessed by your provider back home?

Can I take my GSM phone to Argentina and buy a compatible SIM chip there to use for a couple of weeks?

Thanks, Joel, in Chicago