Dev team的成員MuscleNerd稍早在他的twitter上分享，距離iPhone4 Unlock只剩下最後一步

JB歸JB

解鎖Unlock歸解鎖Unlock



只剩最後一個重要的步驟

Next step is to keep the task backgrounded like we did for 3G/3GS … Backgrounded task is the unlock.