Personal & Flexible: UE-V is personal and flexible for the end user as it allows the application and operating system personalization’s to roam across Windows versions, so that they don’t have to reconfigure applications each time they login to Windows. It also uses smart synchronization policies determine when and where to synch application and OS experience, helping ensure seamless personalization and quick loading.
Simple & Versatile: Making it simple and versatile for IT to choose what applications they want to roam the experience for is another area of focus for UE-V. Using settings location templates that automate the identification of what locations in the registry and file system that settings are located in, IT can choose what applications should roam their experience. Using a wizard based tool called the UE-V Generator, IT can create custom templates for line of business applications. UE-V also allows IT to roll back settings to their initial state, which can be used if the user accidently applies unwanted settings changes.
Integrated & Scalable: UE-V can be integrated and scale through an organization’s existing infrastructure and management tools. The UE-V agent and the settings location templates created by IT can be deployed through System Center Configuration Manager or any other software distribution tool. UE-V also seamlessly integrates with the Microsoft desktop virtualization products to roam the user experience in hybrid environments. There is nothing that the IT Pro needs to configure in App-V, RemoteApp, a VDI or session based desktop to enable UE-V to work.
UE-V integrates with Windows Folder Redirection that centralizes user folders such as documents, pictures, desktop, application data, and other folders where user or application data can stored to a server in the Datacenter, that makes these folders accessible to this user from any other pc that they log in from.
UE-V & App-V go hand in had, read more about it - http://windowsteamblog.com/windows/b/business/archive/2012/04/04/introducing-ue-v-and-app-v-5-0.aspx