Did you here the one about.... the Internet Connected Fridge
Well this Electrolux fridge really does run XP Embedded. It's an MP3 player, allows you to store video messages for the Family and future versions are planned to include inventory management through a built-in barcode scanner - All it needs is Media Center Extender functionality and everyone will want to be in the kitchen at parties.
You can find info at: http://www.sky.com/skynews/article/0,,30400-13519165,00.html. What other household devices do you think are good candidates for an Embedded platform and why?