In an ideal IT world we might start all over again –move entirely to public cloud providers, build applications in real time, run everything as services, and pay only for what we need. Indeed, this is exactly what some businesses are doing. However, many businesses have a ‘legacy’ of existing IT investments that generate revenue, manage cost and risk, free up people, and generally deliver a lot of value. They have plenty of challenges, but their significant and positive investment in IT does make their business better. In his session at the Up 2010 Cloud Computing Conference, Andi Mann, vice president of virtualization product marketing for CA Technologies, provided actionable advice for these businesses, covering ROI opportunities, realistic challenges and expectations, and real world examples in a step-by-step evolution from virtualization to cloud, which leverages their valuable investments in existing IT systems.