My colleague at CA, Stephen Elliot, vp of strategy, has spent a lot of time recently with large enterprise customers on how they approach and define their plans for Cloud Computing. Many are excited about the opportunity that public clouds provide, but remain on the sidelines due to what they see as technology and business risks. In fact, they all pointed out their fear of data "left" in the public cloud, poor visibility into service performance, and the general confusion over what a public...