According to iH8sn0w, He is going to release the updated version of sn0wbreeze which will include the fix for ultrasn0w. So soon you will be able to unlock your iPhone 3GS iOS 4.3 on iPad baseband using ultrasn0w. You can unlock your iPhone 3GS on baseband 4.26.08 using Ultrasn0w. Soon you will be able to unlock your iPhone 4 on iOS 4.3 using Ultrasn0w as iH8sn0w is working on it. Teaser video of iPhone 3GS unlock running iOS 4.3 using Ultrasn0w embedded below.