Timely feedback on real-time changes and events are becoming a more important demand in the corporate framework. This article discusses the mechanisms and techniques to build real-time feedback in the SOA architecture, and make the details of the message transparency.
Responding to real-time changes and events in a timely manner is becoming one of the most important requirements for an enterprise framework. This article discusses technologies and mechanisms that enable a service-oriented framework to effectively respond to real-time stimuli and, therefore, SEND AND RECEIVE SYNCHRONOUS LAYERS OF ARCHITECTURAL STACK WITHOUT KNOWING The Details of The Underlying Event System.
http://www.javaworld.com/javaworld/jw-01-2005/jw-0131-soa.html
In addition: MULE has released 1.0RC2 recently
http://sourceforge.net/projects/mule/