"You’ll be able to play over a hundred Xbox 360 games on Xbox One starting today, with hundreds more to come. Xbox 360 game play on your Xbox One includes the added benefits of Xbox One features such as screenshots, in-home streaming, and Game DVR. You can even enjoy multiplayer with friends playing Backward Compatible titles on Xbox 360. To start playing your Xbox 360 games on Xbox One after 12pm PST today, refresh your Game Collection to see your pre-purchased, digital Xbox 360 titles from the Backward Compatible title list in your ready to install queue or simply insert the disc for a supported Xbox 360 title and download the game to start playing it on Xbox One. In addition, for a limited time, all Xbox One owners can play backward compatible games on Xbox One with the multiplayer benefits normally available only with an Xbox Live Gold subscription. Take a look at the list of backward compatible games available now, and get started playing today."
http://majornelson.com/2015/11/12/your-new-xbox-one-experience-begins-today/
Looks like free multiplayer for 360 games played on Xbone, for a limited time 😆
