I'll take the XBOX720 over the PS4 any day of the week. If I was going to drop cash on a TV, it would be Samsung, not Sony. Why would I even consider 'Ultra" when I refuse to buy a Blu-Ray player. The BR's are over priced and I can rent just about anything I want to watch on "video on demand". Ultraviolet is a joke.
Not sure why you mention Ultraviolet but nobody really knows what PS4 will bring to the table so its kind of useless to compare it to other products. My guess is that it will take advantage of the next generation display technology and be much more than your proverbial "game console". I suspect that Sony is working on producing a complete ecosystem similar to what Apple is doing.