Quaqua Look And Feel: The Quaqua Look and Feel (Quaqua) is a Java implementation of Apple’s Human Interface Guidelines (AHIG) for Mac OS X. It only works on Apple’s Macintosh Runtime for Java. Quaqua is focused on fixing minor bugs and glitches in Apple’s implementation of the AHIG as well as providing enhancements that make your application fit nicely into Mac OS X.
I wish I had a Mac to use it .. 😦
Too bad it’s working only on Macs… but soon, OS X will be installed on a x86 near you 🙂