I don't think anyone can fault Microsoft for the break-neck speed at which it has been updating the Xbox One feature-set. So far this month, preview members have picked up the ability to wirelessly display other devices onto their Xbox One via Miracast, among other smaller features.
Next up, Xbox One preview members will be able to use the in-built Game DVR to capture gameplay footage at 60 fps.
Full story from the WindowsCentral blog...