You're Smule and you've already released the innovative and acclaimed Ocarina app for the iPhone. What do you do for an encore? Why a Leaf Trombone, of course, a "massively multi-player musical game for the iPhone and iPod touch", now available for $0.99 via the iTunes App Store.

Playing Leaf Trombone is easy: blow into your iPhone's microphone (or, in Touch mode, simply touch the screen) and press down on the leaf to play a note. Slide your finger towards you - you'll hear the pitch get higher, just like a real trombone Choose your favorite song from Leaf Trombone's library of songs, right from your iPhone or iPod touch!

If you're trying it out, let us know in the comments. Maybe we can get a TiPb reader band together!