From the Windows Experience Blog:

The Windows SideShow Team has announced the availability of 4 BETA Windows SideShow Gadgets that let you control Windows Media Center from a Windows Sideshow device. You can sign-up via Microsoft Connect to gain access to Beta Test these new Windows SideShow Gadgets:

Here is the breakdown of the 4 Windows Media Center BETA Windows SideShow Gadgets and what they do:

  • Now Playing: View what is currently playing in Windows Media Center (includes playback controls)
  • Pictures + Video: Browse your Photos and Videos folders
  • Music: Browse your Music folder and play any song
  • TV: Look at what is on TV via the Windows Media Center Guide, Schedule Recordings, and View Recordings (in a Thumbnail view)