Not too long ago we reported that the iPhone 4 had been successfully unlocked by a member of the iPhone Dev Team to play nice on Canada’s Bell network, you can read that article and view the video (here).

Well according to an article over on The Gadgets, another iPhone Dev Team member has now unlocked the iPhone 4 to play nice on T-Mobile USA.

In a tweet from @MuscleNerd, he has shown off his unlocked iPhone 4 playing along on the T-Mobile USA network and says the unlock was managed by using untrasn0w.

Unfortunately there is still no word on just when the iPhone Dev Team will release a final version to unlock the iPhone 4, but have thus far had a hard time coming up with a final release for public use.