Another great work from iPhone Dev team, as they have come up with a new version of UltraSn0w unlock, which will work for iPhone 4, 3GS and 3G. The new version UltraSn0w 1.1-1 is an excellent release for users who have unlocked their iPhone 4, 3GS or 3G by using UltraSn0w 1.0.-1, as it resolves issue of poor standby battery life.
If you are one of those who have complaints of poor battery time after unlocking your phone, you should install UltraSn0w 1.1-1 which can be downloaded from Cydia.
The Dev team fine-tuned and came up with UltraSn0w 1.1-1 which will improve the battery life. Sherif Hashim has shared some screenshots with us.
UltraSn0w 1.1-1 has the capability to unlock devices like iPhone 4, 3GS and 3G running any firmware up to iOS 4.0.1 with baseband 01.59.00, 05.13.04, 05.12.01, 05.11.07, and 04.26.08.