Ultrasn0w

 Ultrasn0w 1.2.1 Released!
 Unlock iPhone 4 4.0/4.0.1 using Ultrasn0w 1.0-1
 Ultrasn0w 1.0-1 for iPhone 4 Unlock Release is Near
 Unlock iPhone 3GS iOS 4 with Ultrasn0w 0.92