We just reported that Microsoft is partnering with Verizon and Comcast (among others) to continue expanding the reaches of its Xbox 360 entertainment suite, but would it be complete without adding compatibility to its mobile empire as well? The Windows Phone Team says nay; it spoke up this morning about an upcoming app called Xbox Companion, which will access the Xbox Live Marketplace and also act as a remote, allowing you to navigate your console or control video playback directly from your handset. You can call it laziness or convenience -- or both -- but either way, it's still going to be a clever new addition to the Marketplace. The app's currently in beta and will be available as a free download "soon." For a peek, check out the video below at around the one-minute mark.