Server virtualization has gone mainstream — half of surveyed enterprise IT shops are using x86 server virtualization today, and two-thirds will by 2009. Enterprises using virtualization have an average of 24% of servers virtualized today and expect to reach 45% by 2009. Crucially, these users are gaining experience with virtualization: 23% of enterprises now have at least two years of deployment experience, and that will rise to 51% by 2009. For marketers, it's crunch time: System management marketers must reposition with better entry-level offerings for virtualized environments, and ISV marketers must upgrade products to better fit into a virtualized server environment.