Interesting post to the ADL Community Forums of a web service for the CMI Data model to plugin to the ADL SCORM 2004 sample runtime environment.
http://adlcommunity.net/mod/resource/index.php?id=25 
The web services use the IEEE 1484.11.3 XML binding for SCORM datamodel and use RPC style web service invocations. This is a good compare/contrast with Icodeon work that uses a SOAP style document literal wrapped web service. The Icodeon work is described here:
http://labs.icodeon.com/spd.html 