This Beta server has been modified to allow for files to be uploaded to and served from S3 without copying them to the disk of the head node. This is EXPERIMENTAL so please set your expectations accordingly.
Direct to S3 uploads will occur when you use the drop target in files tab on the left. Files given as uploads to module parameters DO NOT go to S3. For any large files (>100MB) it is recommended that you upload it to the files tab first and then run the module on it from there.
Let Ted know of any issues you find (and if you don't know how to contact him already you probably should not be on the beta server).