I installed Orb on my Media Center PC and I am pretty impressed.  The app runs in the system tray and allows you to connect to all your media and even live TV from any internet connection via http://my.orb.com.  You don't even need Media Center.  It will install on any PC running Windows XP.  This allows me to watch my recorded shows on my tablet or even my phone.  I can really only watch it on my phone when I'm in an EVDO area but it is really smooth and almost effortless.  I can even get to all my music, photos, and movies.  It is so Star Treky.