See OEM-AS management & "Application Server Enterprise Management" for a license overview of 10.2.0.4 OEM, i.e.:

• Diagnostics Pack
• JADE - Java Application Diagnostic Expert
  
• download at http://www.oracle.com/technology/software/products/oem/htdocs/jade.html
• A New Approach to Diagnosing Java Application Performance ( JADE / AD4J Application Diagnostics 4 Java)
  http://www28.cplan.com/cbo_export/PS_S291925_291925_176-1_FIN_v2.pdf cboracle/oraclec6
• Management Pack for Service-Oriented Architecture (SOA)

Also see Randy Stafford's presentations at OOW07 at Oracle OpenWorld 2007 Presentations
for some SOA related OEM insights.