As another one of Cisco's innumerable champions, Monique Morrow, said on her blog in recent past ( From India to Intercloud: <a href="http://blogs.cisco.com/sp/comments/from_india_to_intercloud/):">http://blogs.cisco.com/sp/comments/from_india_to_intercloud/):</a> Perhaps one approach is to consider a systems view especially around security itself ;and cloud computing/inter-cloud e.g., look also at:http://newsroom.cisco.com/dlls/2009/prod_042109.html Absolutely spot on