It's official! Leaf Trombone: World Stage is now available exclusively for iPhone OS 3.0. So time to upgrade. You may remember the demonstration Smule did way back in March when Ge and David performed a Duet. As promised, the 3.0 version uses bluetooth to sync two devices so you and a friend can rock out together.
Check out this new video straight from Smule HQ to get a glimpse of duet craziness!