So VDI is part of Microsoft's overall desktop virtualization stack. VDI is another way to deploy Windows. VDI has its benefits for certain scenarios and we think customers should definitely consider VDI as part of their broader desktop virtualization strategy. VDI benefits include data security and compliance, business continuity, and centralized provisioning of the desktop. VDI requires good network connectivity, so it isn’t appropriate for all use case scenarios. Scenarios where we have seen early adopters be most successful include: managing a large number of unmanaged desktops, such as contractors workers and employee owned PCs, highly-regulated industries where centrally-managed desktops can help with security or regulatory compliance, managing desktops for highly connected, remote locations such as branch offices, offshore workers, and traditional task worker scenarios. Flexibility and data security should be the primary drivers for VDI; not capex savings. If VDI is the right solution for your company, you should still think about virtualizing your applications as there are definitely cost savings to be realized when App-V is used. If you have a highly disconnected, mobile workforce, you should consider using AppV and User State Virtualization. You can also leverage features of Windows 7 Enterprise (e.g. Bitlocker/Bitlocker to go) to lock down laptops/portable devices and maximize the security of that workforce.