From the article:
The working group "did a deep analysis of WS-everything -- which are real, which are workable across platforms, what are the gaps." Urban said the group included participants from both Sun and Microsoft. "Those two organizations invested a lot of time and energy in the Web Services Working Group. Sun and Microsoft seemed to have played nice together. We got good strong experts from both companies, and they helped us work through the details of JAXB [Java Architecture for XML Binding]."
Read IFX Forum expected to unveil Web services work