Not sure when this went live, or how I missed seeing it the moment it did, but the snippet of video on Trism that Apple showed off in their iPhone 3.0 Sneak Peek Event is up in full on Apple’s developer site, and it’s brought along some friends. The full list includes:

• Werner Jainek of Cultured Code (Things)
• Dr. Ge Wang of Smule (Ocarina, Leaf Trombone)
• Steve Demeter of Demiforce (Trism)
• Christina Wick of AOL (AOL Radio, AIM)

The videos show not only some great insights into the personalities behind some of our favorite apps, but the development process as well.

(Via Cocoia on Twitter)

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!