On 25 May 2010, the OPDS Catalog 0.9 specification was published and is now available at: http://opds-spec.org/specs/opds-catalog-0-9. This first formal release of the specification, timed to coincide with IDPF Digital Book 2010 and BookExpo America, starts our 60 day comment and review period before the stable 1.0 release, which is scheduled to be published 26 […]