A set of interesting talks on clouds, how they relate to earlier paradigms, how they will be exploited in the future. There was though the assertion that its too early for standards... but really sure if I agree since we have both open and closed source examples of the Amazon WS interfaces so are they becoming defacto???
It was also interesting that they mostly talked about Infrastructure as a service clouds (AWS, Eucalyptus) rather than all of the types, PaaS and SaaS examples glossed over.
Enric from the EC also mentioned how behind the work of OGF they are in terms of interoperability, which was very nice to hear. This means though that as far as we can see that NSF is the only large scale funding body that doesn't highlight this in its calls for funding oppurtunities.