Samsung has recently released world wide the Galaxy S 3 and also it has released from Verizon as well.This
Verizon version of Galaxy S3 now comes with international roaming facility.Now all the verizon users are promised to get the new update from Verizon to avail this facility.This upate will comes through the OTA update.This update date has not yet finalized but still its been some work around to enable the Global roaming facility.But don't do it manually just wait for the update from the Verizon and making it globally available.