Media Center remote controls supporting gadgets

We've talked about various concept devices supporting the Windows SideShow platform. Engadget has just posted thoughts on one of these concepts - the Media Center remote control for Windows SideShow control supporting gadgets.

This concept is one that I like for many reasons. It allows me to control my media in an interactive manner with my main monitor or TV turned off. It can provide new ways to interact with the channel guide allowing me to find or record shows without disrupting the viewing experience for my family or others in the room. Finally, it allows me to see information from the gadgets running on my PC - instant messenger contacts, e-mail updates, sports scores or anything else I might find useful in the living room.

What do you think of these expereinces on a remote control? What would make it more useful to you?