Many things have changed in Windows Vista that will significantly help ease the deployment processes. These include the new out-of-the-box imaging technologies, the XML-based migration scripts, new tools for image engineering (ImageX and System Image Manager), enhancements to the unattend.xml format, as well as an updated version of the Solution Accelerator for Business Desktop Deployment (BDD), known as BDD 2007 Beta 1, to provide guidance on deployments.
More infos : Microsoft.com
