I WANT ONE NOW!!!
This is by and far the best thing ever for anyone considering dropping cable. The fact that it can stream to other devices WHILE PLAYING GAMES, and adds buffering for PVR-lite experiences for TV is phenomenal - and you can change quality settings too if that's your thing.
I get two channels right now, and I hate watching them as I have commercials. Now the only thing I'd like to see them expand is allowing a full PVR where I can get the XBONE to record shows I want to watch, so I'm not ruled by broadcast times on free-to-air channels.