Yesterday, Apple announced that it will release iOS 4.3 on 11 March – the same day when the company will start shipping iPad 2 in many countries. This is the right time when Dev Team can release the unlock for iPhone 4 – iOS 4.1 (BB -2.10) , iOS 4.2.1(BB-3.10) and probably for iOS 4.3 (BB-4.10). According to the tweet from @MuscleNerd and earlier by @Sherif_Hashim (Baseband Hacker), the vulnerability for the unlock has been found and will be implemented soon. The DevTeam (@MuscleNerd) is working on invoking the same commands on iOS 4.3beta3 which is a clear indication that Unlock may arrive next week in addition to next firmware release (iOS 4.3).
We will keep you updated!