Hi, v0.3 of the UWS spec is now on the Twiki at http://www.ivoa.net/internal/IVOA/IvoaGridAndWebServices/UWS-0.3.pdf This draft captures in more detail the REST binding that I described in the recent Note. I've revised the example applications to refer to the REST binding except for the VOSpace one which uses the older, SOAP binding. Cheers, Guy