Brian Gammage is a vice president and Research Fellow with Gartner, where he works in the Infrastructure and Operations area. His specializations include the development of computing architectures, strategic road map planning for client computing and the commoditization of IT. Mr. Gammage is a leading expert on the development and application of virtualization technologies within client computing. He also developed the IT Market Clock, a model that supports strategic investment and divestment planning across portfolios of IT assets.