Charlie Owen has posted a neat addin for Media Center called PowerPlaylist. This sample application adds a custom Start Menu strip to Media Center and each title represents an audio and slideshow combination. Great if your in the mood for some music and with one button it will kick off your playlist and slideshow. The application is a sample app that Charlie has posted full source code on Codeplex.com
It would be nice to see some developers pick this up and make some interesting applications with it, especially as this years Media Center Show Awards is going to featuring 3rd party and enthusiast developed Media Center applications.