This document will be updated for the following weeks:
We'll add first the function specification on this document, then we'll wrote the unit tests and finally implement them. The document is here
If you have got some suggestions about the specs and implementation, I suggest that we open a new topic per module. For example: Moodle 2.0: API - Forum, Moodle 2.0: API - User, Moodle 2.0: API Courses,...
so, when can we be able to get that list.
the easiest way to see the list of available web service functions is to go to the administration, then create a service and try to add functions to this service (http://docs.moodle.org/20/en/How_to_enable_web_services_for_ordinary_users#Creating_a_service). You'll see all the available functions for your Moodle site there.