See XMLRPC-56 in Jira. This didn't make it into 2.0, if i remember right. But I can see no reason for not integrating it once 2.0 is out.
This issue is for asynchronous calls, i.e. with execute.Async(). I would like to see it with the regular .execute() as well.
Should I add a new issue to Jira or just add it as a comment XMLRPC-56.
/J
