The Xbox Live Companion App for Windows Phone is due out tomorrow.

Earlier today Microsoft announced the list of video partners coming tot he XBox in December this year and later in 2012 with a long list of big names supplying On Demand video content via the updated XBox interface, subject to the country you live in. At the same time the free Xbox Companion app for Windows Phone will let you find, learn more about and control content from popular entertainment services on Xbox LIVE.

Xbox Companion search powered by Bing. Search the unified Xbox catalog for movies, TV shows, music, games and apps using the Windows phone. View a detailed unified results page across all content providers. You can see recently played games and apps and browse the Zune video catalog

Using the Xbox Companion app you can learn more details about the movie, TV show, music or game that is playing on your console. You can also get friend activity (friends online, friends with beacons, friends who have recently played), achievements and related items.  You’ll also be able to select a search result, and launch a movie, TV show, game or app on the connected console as well as play, pause, fw, rw the playing video or music on the connected Xbox,initiate media purchase and navigate your Xbox console with Windows Phone using the Xbox Companion.