I love this app. Im an elementary music teacher and used it for the intro to a Chinese folk song in concert. The sound is wonderful, the playing interface is absolutely easy to use. I love the variety of the scales and it has made me learn more about various tunings or scales. You can record what you play and play it back easily. All that and it looks beautiful on the iPod Touch screen. I cant think of a single thing to make it better. Maybe develop some other instruments, such hammered dulcimer or something. A gong app would be awesome. Besides all that, the sound is soothing, just perfect for sitting around in the dentists waiting room! Oh, I know, add a way to add ambient sounds like a fountain, or surf or the rustling leaves..... getting a little New Age-ish here. Look out Kitaro : )