[[!comment format=mdwn
 username="http://joeyh.name/"
 ip="4.252.11.120"
 subject="comment 2"
 date="2012-11-13T17:09:31Z"
 content="""
It's not there yet. I don't think it will be hard to add, most of the same things need to be done to support upload progress bars with S3.
"""]]