Q: What is Project JXTA?

A: Project JXTA started as a research project incubated at Sun Microsystems under the guidance of Bill Joy and Mike Clary. Its goal is to explore a vision of distributed computing using peer-to-peer topology, and to develop basic building blocks and services that would enable innovative applications for peer groups. Recognizing this effort would benefit from expert coders outside of Sun (Joys Law: Innovation Happens Elsewhere), the project has posted a draft of a specification and some prototype code to a web site, www.jxta.org under the Apache Software License, encouraging others to join in our efforts. The project now is evolving daily.

[quoted from the JXTA FAQ]