This is a touchpad to MIDI continuous controller for apple macbook pro, may work with the magic trackpad too.
I use it to control tree x/y cc with fingers.
easy to use interface.
finger moving to create music and more.
thanks to anyma.ch for their fingerpinger object
How did this project use Max?
max used for the conversion off x/y position on the touchpad to midi x/y cc. and for make the .app