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 was MAX used?
max used for the conversion off x/y position on the touchpad to midi x/y cc. and for make the .app