Hi there,
Samsung UD is being phased out at the moment, and they are working on a new version - which is called MagicInfo Videowall.
To briefly summarise, it's application enables you to add multiple sources across a network and manage and manipulate them on a videowall of magic info enabled displays - think large control room or monitoring stations.
There is a download to the server software on the samsunglfd.com website under the software tab.
Hope that helps!