Please see this Google Code Wiki page. It contains documentation and
an example of how to use the com.matbury.sam.data.Swf class:
http://code.google.com/p/swf-activity-module/wiki/Amf_as
I'm gradually removing the hard-coded values from the services in
moodle/lib/amfphp/services/ so that they'll accept parameters from
Flash clients. The module and AMF3 packages should be ready soon for
testing on your development servers.
Please post any questions or suggestions you have here.
All the best,
Matt