Virtual this and that has been around for a minimum of 3 decades in one form or another. Mainframes have, and continue to have 'Virtual' in every aspect of the OS that dwarfs the distributive computing technologies of the day. Though it may seem as if I'm regressing, the reality is that mainframes continue to dominate big industry computing requirements and needs. The reason for this in my mind is simply that distributed computing did not inherit the secure OS, application/online security capabilities, backup/recovery, change management, and countless other disciplines from its big brother. I realize that small business is a major part of our economies, and that these business do not require the same computing power as the larger industries do, unfortunately they are being cheated out of simple computing disciplines that make them and the data they manage vulnerable to attacks and a threat to their own business processes, and partners. So for me, I would much rather hire or work with someone who has experience in these disciplines, and understands the technologies strengths and weaknesses than someone who has strictly acquired a skill without the proper depth of knowledge often missing in the PC computing world. Regards.