The iPhone hacker iH8sn0w, the guy behind sn0wbreeze, has managed to port new tool called ultrasn0w fixer on iPhone 3GS running iOS 4.3,
ultrasn0w fixer has been developed by msft_guy (TinyUmbrella developer), he successfully developed ultrasn0w fixer in the beta stages of iOS 4.3.
What will ultrasn0w fixer do?
Till now, ultrasn0w fixer will be able to unlock iPhone 3GS running iOS 4.3 which has previously unlocked via iPad baseband 6.15.00, also iH8sn0w will release a new upgraded version of his sn0wbreeze jailbreak to include this ultasn0w fixer on it. Precisely you will be able to unlock your iPhone 3GS on the new iOS 4.3 baseband 4.26.08.
Will ultrasn0w fixer work on iPhone 4 ?
According to iH8sn0w you will be able to unlock iPhone 4 on iOS 4.3 / 4.2.1 / 4.1 basebands 4.10.01 / 3.10.01 / 2.10.04 with the ultrasn0w fixer soon.
ETA for the new Ultrasn0w ?
iH8sn0w has just confirmed via his twitter that he will release it for iPhone 3GS tomorrow, but he didn't give an exact date for iPhone 4