The grumpy old man in me wonders why, exactly, people are supposed to be sharing a meal and convivial fellowship together need to have entertainment. I could understand the benefit of perhaps being able to order (drinks, particularly) via such an interface, but playing games and watching videos? Really?
Well, my probably even older great aunts seem to appreciate table games, more specifically card games. Board games are also older than any of us. I don't see how is this fundamentally different.
dude, it was quite cool honestly even though I could immediately reverse engineer what they were using software and hardware-wise into v simple units (flash for the UX, a normal projector, touch pads, standard x86 board strapped to the projector).