Any iPhone 3G, with baseband 06.15.00, is now unlocked for life. Since iPhone 3G won’t be getting any firmware update starting iOS 4.3, your iPhone 3G will remain unlocked for life. MuscleNerd also confirmed this in a tweet:
Any iPhone 3G, with baseband 06.15.00, is now unlocked for life. Since iPhone 3G won’t be getting any firmware update starting iOS 4.3, your iPhone 3G will remain unlocked for life. MuscleNerd also confirmed this in a tweet: