Last week, Stéphane Cousot wrote a basic library for communicating between Processing and Pinguino. This the first release but it was tested and is fully functional. Stéphane made a package with a processing sketch and the Pinguino program associated. You can download this package on Stéphane website.
This library is the result of our work with Douglas Edric Stanley. The goal is to build a USB interface wich can be driven by many different software ( Processing, Python, Pure data, java ... ).
Pinguino is the hardware part of this project.
Douglas Edric Stanley Blog.