Hello, I have found an error in the Library processing-arduino-0017.zip. I use OpenSuSE 11.1 and typicall for Linux is the correct use of upper and lower case spelling. On the page where you can download the Library, there is an example for processing with two import commands:
import processing.serial.*; import cc.arduino.*;
But the 2nd import doesn't work, because in the Zip file, the Library file begins with an upper case letter. If you rename the the Arduino.jar in arduino.jar, the Library will work.