I suspect the H2H stuff would be more entertaining if the games were linked, the displays synchronized (split screen?) and there was software to support it. Connections might be a cat5 cable and HDMI cable. Software is the hard part.
I doubt Stern has any interest in investing more time into tournament software. Tops has been supported for a long time, but there have been no changes that I've seen. Virtually no one is using it. Not even sure if Spike supports it. With their hands full with Spike, Spike 2 and the new big display, they're kinda busy these days.
What if they allowed someone else to develop tournament software? They could have interns or maybe a college program support it. Stern could supply a couple of games (Sam and Spike, used games would be fine), then they'd only have to QA the final product. Is there really any proprietary software in there they want to protect?