With over 30 speakers and panellists, 25 use cases and position papers and a first iteration of the SIENA standardisation Roadmap, Cloudscape III brought a 360° overview on the Cloud computing landscape, covering benefits for enterprise, research and government alongside challenges spanning scalability, data movement, ownership and privacy, security and legal issues, openness and interoperability. The event took place from 15-16 March 2011 in Brussels, Belgium.

Mrs. Neelie Kroes, Vice-President of the European Commission responsible for the Digital Agenda, highlighted the SIENA Initiative as an example of support towards Europe's development of open specifications and driving forward international standardization efforts vital for achieving interoperability, which "is essential for the cloud to be fair, open and competitive".

Robert Madelin, Director-General, DG Information Society and Media of the European Commission & Cloudscape III Keynote speaker, comments that "The potential benefits of cloud computing in business, public services and scientific research are widely recognised. Efforts like the SIENA standardisation roadmap will be very useful in making these benefits materialise".