I really love this idea and I applaud Stern for trying, but, there are a couple of things that need to be looked at here.
1) It should be a 4 player game if you want to sell it to families. All the rec room games such as pool, darts, Foosball and pinball have always allowed for 4 players.
2) The machine should look like it has moved forward, not backwards in technology. People want to see progress, and the scoring, for example, looks like it's from a 1970's machine.
3) It should have easy maintenance. It should never be intimidating. There should be a button you push and the playfield glass lifts like the trunk on a Honda minivan. That way, people could easily grab a trapped ball or replace a part. It could even include an extra set of rubbers and a set of easy to replace playfield plastics.
I am not sure if Stern reads this thread, but I think a lot of great ideas have been presented here.
Any other ideas...in case they are reading it?