I'm traveling to Taiwan in a few months, and I was wondering if it is possible to buy a SIM card in Taiwan and replace the Thunderbolt's SIM with a prepaid one.
So you're saying I still need to pay roaming charges because I can't use a SIM card?
Or worse, in areas without CDMA coverage, you won't be able to use the phone. This is NOT a GSM-capable phone for normal quad-band GSM.
Last question: in Taiwan, are only major metropolitan areas CDMA supported, or does it extend within some range of a cell tower?
Not knowing where in Taiwan you are going I have a link for you to look.