Earlier in the year I was working on a large Salesforce project at the FCA (the UK's Financial Conduct Authority). They have now laid out plans saying that there are "No fundamental reason why cloud services (including public cloud services) cannot be implemented, with appropriate consideration, in a manner that complies with our rules" here's my blog about this and the FCA story @The Blog Group @Admin Group, London, UK (Deleted Group) 

FCA signals steps for Cloud computing in UK Financial Services