One of our MCS deployment guys in the UK – Jonathan Bennett (you may know Jonathan as the author of the autoit tools and GImageX) has developed a tool for configuring Windows 7/Windows Vista/Server 2008 images for use in a VDI environment. The tool called VDI Optimizer outputs a VBScript (based on the selections you make in the GUI interface), which can then be used to apply performance and configuration settings to images that will be deployed via VDI platforms – this is particularly useful if you are using MDT 2010 for your image engineering process as the VBScript can bolted into the task sequence using a Run Command Line task.
You can make machine based selections for turning off services and functions that may not be required when the operating system is running in a VDI environment such as hibernation, system restore, and background defrag, as well as adjusting some user based settings such as visual effects, font smoothing and off-screen composition for Internet Explorer.
The beta of this tool is available from http://www.autoitscript.com/files/tools/VDIOptimizer.zip but please remember The tool is provided "AS IS" with no warranties, confers no rights, and is not supported by the authors or Microsoft Corporation.