I was just about to post this, but you beat me to it. The page you linked to isn't loading for me. Here is another link though. http://www.physorg.com/news127137136.html Since Star Trek holodecks use a treadmill effect to simulate walking, I guess we now know what the minimum size of a holodeck is.
living-room-based Holodeck by Microsoft Microsoft Sketches Out Holodeck-ish Tech in Patent App I would say the photo in the patent really shows the closest thing so far in your own living room. Environmental display by projection with the XBOX 720 in 2014?