I went hunting for more information on Java Media Components, and found that there are two sessions scheduled for JavaOne that should shine some light on the new API.
https://www28.cplan.com/cc191/session_details.jsp?isid=296509&ilocation_id=191-1&ilanguage=english
https://www28.cplan.com/cc191/session_details.jsp?isid=296511&ilocation_id=191-1&ilanguage=english
https://www28.cplan.com/cc191/session_details.jsp?isid=296509&ilocation_id=191-1&ilanguage=english
https://www28.cplan.com/cc191/session_details.jsp?isid=296511&ilocation_id=191-1&ilanguage=english
