I swear, something isn't right, both phones support 2100 frequencies, I could understand these phones not working on a prepaid plan but, I dont see why they wouldn't work on a regular plan with data. A co worker of mine managed to get his Sidekick 4G to work over here..I'll have to look into this some more..
My Droid 2 Global works just fine on the CDMA network here in South Korea. I have the international data plan with Verizon. However, there must be some network speed restriction placed on my device by the Korean wireless provider that Verizon is contracted with for international roaming. I recently ran a speed test app and my download speed clocked around 130 kb/s while my upload limit was around 200 kb/s.
Plus, I just got off the phone with customer service and they said that because the Korean network is CDMA, even with a Korean SIM in the phone it would probably revert to the Verizon international carrier. I think there's GSM available in Korea but I read somewhere in these forums that GSM kills the Droid battery.
Yes, using the prepaid SIM should avoid roaming charges.
@the OP: A guy at a QOOK SHOW store told me today that the Moto D2G only works on SK (aka T-world) here in Korea. I'm going to hit an SK shop in the next couple of days to try to get a SIM for my D2G while I'm here. When I get a SIM that works, I'll try to let you know.
From the KT Expat Blog:
"As of January 24th, 2011, the Korean Communications Commission has enacted a new policy allowing phones purchased outside of the Republic of Korea to be used locally, without need of a Certificate of Broadcasting and Communication Equipment (“방송통신기기인증서”, also known as a “전파인증서”). All that is needed is (free) registry of the device’s IMEI and serial number into our system.
(Previously, non-Korean phones were not usable on Korean networks without a prior costly certification through the KCC.)"
KT's Expat Blog :: Use of non-Korean Mobile Devices with KT