Media Center Extender promises to solve my dilemma

I've always been intrigued by the Windows Media Center Edition, but never bought one because the computer is in the den and the TV is in the living room. Looks like the new extender will solve this dilemma. http://www.microsoft.com/windowsxp/mediacenter/evaluation/devices/extender.asp

I'm looking forward to these hitting the market. Anyone have any idea when they will show up and how much they'll cost?