A popup window will appear in Silverlight, and offer you an interface that looks very similar to Windows Media Center. A playlist, music controls, and a background which is a collation of all of your music, that you can select and click on.
For a first look at Windows Home Server "Vail", check out Mary Jo
Foley's coverage on the All About Microsoft blog.
To see a high-def
video of the Windows Media Center-like features of the remote access web
interface, view it here.