MIDI Jammer
I want to highlight a really fun music application called MIDI Jammer by Andrew Buch, which uses DSMI for sending MIDI events. The touch screen is divided into horizontal/vertical bars which are mapped to notes of a scale that can be configured by the user. You can jam around just by sliding the stylus over the bars. The fun thing is that it’s pressure sensitive, so the volume depends on the pressure you apply. In another mode the program can also be used as a Kaoss Pad (which is more flexible than KaossDS). Andrew is planning on a standalone mode that uses the PSG for live chip-style jamming!