Microsoft today announced new Xbox app that will be included in Windows 10 devices. It includes messages, activity feed, my games section and more. For example, you can view videos posted by gamers from Xbox One, you can comment on it and more. You can share content to other friends and stuff like that.
Also, people can record game videos on PCs and post it to Xbox Live. Yes, Game DVR in Windows PCs. You can anytime save the last 30 seconds of your game moment on Windows PCs.